Colorful and bright diamond
US 20150059405Al
(19) United States (12) Patent Application Publication (10) Pub. No.: US 2015/0059405 A1 Qiantai (54)
(43) Pub. Date:
COLORFUL AND BRIGHT DIAMOND
(71) ApplicantszHe Qiantai, (U S); Huang HaiXin, Nanning City (CN)
Publication Classi?cation
(51) Int. Cl. A44C 17/00 (52)
(72)
Inventor:
Mar. 5, 2015
(2006.01)
U.S. Cl.
He Qiantai, Liuzhou (CN)
CPC .................................... .. A44C 17/00 (2013.01) USPC
............................................................ ..
63/32
(21) App1.No.: 14/473,764 (22) Filed:
Aug. 29, 2014
(57)
Related US“ Application Data (63) Continuation-in-part of application No. 14/076,104, ?led on NOV_ 8’ 2013~
(30)
The present invention involves the ?eld ofjewellery products, and eSPeCiany, relates to a 00101111111 and bright diamond Which comprises an even number of main crown facets and an
Foreign Application Priority Data
Aug. 30, 2013
ABSTRACT
(CN) ....................... .. 2013103890566
‘i
even number of main pavilion facets. The colourful and bright diamond has a total re?ection gross e?iciency of two 90% and the optical performance Which is 12 times more than the existing ordinary diamonds.
.
e?
“t
..._....... .
i“ r
m. ,9:
\\'
\
\_
\‘N V
'
‘
'
.-
M
,‘ I
'
i
7 ' - ..“:PQQ““.-h~.-.-.-.-.-.;.»;.¢~. .E..“..“-Y\\\.““ -»~-‘ A»? : “w
~15)? V
Patent Application Publication
Mar. 5, 2015 Sheet 1 0f 4
US 2015/0059405 A1
\x. “max
.
‘
P:
Fig 1a
Patent Application Publication
xi .
Mar. 5, 2015 Sheet 2 0f4
US 2015/0059405 A1
Patent Application Publication
Mar. 5, 2015 Sheet 3 0f 4
US 2015/0059405 A1
Patent Application Publication
Mar. 5, 2015 Sheet 4 0f 4
US 2015/0059405 A1
Mar. 5, 2015
US 2015/0059405 A1
COLORFUL AND BRIGHT DIAMOND FIELD OF THE INVENTION
[0001]
The present invention relates to the ?eld of j ewelry,
and in particular to a colourful and bright diamond which can radiate the biggest and the most beautiful ?re colours. BACKGROUND OF THE INVENTION
[0002] Diamond has the strongest lustre and the most beau tiful ?re colours and thus is known as “the king of gems”,
[0012] Preferably, the angle between the crown star facet and the table facet is 12~l3 degrees. [0013] Preferably, the angle between the crown arrow star facet and the plane of the girdle is 35~37 degrees.
[0014] Preferably, the angle between the upper girdle right star facet and the plane of the girdle and the angle between the upper girdle left star facet and the plane of the girdle are both
37~40 degrees.
way.
[0015] Preferably, the numbers of the crown star facets, the crown arrow star facets, the upper girdle right star facets and the upper girdle left star facets are each 8, and the total area of them accounts for 8%~12% of the area of the crown portion.
[0003] However, due to complexity of re?ection of the ?re colours of the diamond and historical limitations, the gross ef?ciency of the ?re colours being re?ected from diamonds
[0016] Preferably, the angle between the pavilion arrow star facet and the plane of the girdle is 38~40 degrees.
which has been specially loved and pursued by people all the
currently popular worldwide is very low, resulting in optical
[0017] Preferably, the angle between the lower girdle right
properties of related diamond very poor. Therefore, the ?re colours of diamonds favourite to contemporary people fail to
star facet and the plane of the girdle and the angle between the lower girdle left star facet and the plane of the girdle are both
meet ideal demands.
40~43 degrees.
SUMMARY OF THE INVENTION
[0004] The present invention aims to provide a colourful and bright diamond, which can radiate the biggest and the most beautiful ?re colours, to solve the above problems. [0005] In order to achieve the above objects, the technical solution of the present invention is as follows.
[0006] A colourful and bright diamond, with shape and construction of “round seventy-four facets type of colourful and bright diamon ”, in particular comprising main crown facets and main pavilion facets, both in number of 8 and each accounting for 88%~92% of the area of its own portion. [0007] One table facet is provided at the top end of a crown portion, a plurality of crown star facets are provided between
the edge lines of the table facet and two neighbouring main crown facets, a crown arrow star facet is provided from the bottom of the crown star facet to between two neighbouring main crown facets above a girdle, and an upper girdle right star facet and an upper girdle left star facet are provided at two sides under the crown arrow star facet and above the girdle,
respectively. [0008]
[0018] Preferably, the numbers of the pavilion arrow star facets, the lower girdle right star facets and the lower girdle left star facets are each 8, and the total area of them accounts
for 8%~12% of the area of the pavilion portion.
[0019] Preferably, the width of the bottom tip star facet is 0.l~2% of the diameter of the girdle.
[0020] Preferably, the height of the diamond is 58~6l% of the diameter of the girdle; the height hl of the pavilion portion is 4l~43% of the diameter of the girdle; the height h2 of the crownportion is 15~l 8% of the diameter of the girdle; and the thickness h3 of the girdle is l~2.5% of the diameter of the
girdle. [0021] A colourful and bright diamond is provided by the present invention, and it is proved by experiments that: using the technology of the invention, diamonds and gems, when styles changed and materials replaced, can obtain the same
superb optical effects. Therefore, the technology is applied to diamonds and gems with styles changed and materials replaced, which is always within the scope of protection of the present invention.
The numbers of the crown star facets, the crown
arrow star facets, the upper girdle right star facets and the upper girdle left star facets are each 8, and the total area of them accounts for 8%~12% of the area of the crown portion. [0009] In a pavilion portion, a pavilion arrow star facet is
BRIEF DESCRIPTION OF THE DRAWINGS
[0022]
FIGS. 1, 2 and 3 are schematic views of a “round
provided under the girdle between two main pavilion facets,
seventy-four facets type of colourful and bright diamond” provided by an embodiment of the present invention,
with the height of it accounting for half of that of the main pavilion facet; a lower girdle right star facet and a lower girdle
wherein:
left star facet are provided at two sides above the pavilion arrow star facet and under the girdle, respectively; the num
dimensioning,
[0023]
FIG. 1 is a front view, FIG. 1a is a schematic view of
bers of the pavilion arrow star facets, the lower girdle right
[0024]
FIG. 2 is a top view of the crown portion, and
star facets and the lower girdle left star facets are each 8, and
[0025]
FIG. 3 is a bottom view of the pavilion portion. the
the total area of them accounts for 8%i12% of the area of the
pavilion portion; and a bottom tip star facet is provided at the
bottom end of the pavilion portion. [0010] Preferably, the main crown facets and the main pavilion facets are provided, both in number of 8 and the area
of each accounting for 88%~92% of its ownportion; the angle between the main crown facet and the plane of the girdle is
37.5~38.5 degrees; and the angle between the main pavilion facet and the plane of a girdle is 40.5~4l .5 degrees. [0011] Preferably, the width of the table facet is 56~58% of the diameter of the girdle.
facets in the above ?gures are named as follows: 1. main
crown facet; 2. main pavilion facet; 3. table facet; 4. crown star facet; 5. crown arrow star facet; 6. upper girdle right star facet; 7. upper girdle left star facet; 8. pavilion arrow star
facet; 9. lower girdle right star facet; 10. lower girdle left star facet; 11. bottom tip star facet; [0026] FIG. 4 is a schematic diagram of re?ection principle of ?re colours of a “brilliant type of diamond”; and
[0027] FIG. 5 is a schematic diagram of re?ection principle of ?re colours of a colourful and bright diamond.
Mar. 5, 2015
US 2015/0059405 A1
DETAILED DESCRIPTION OF THE PRESENT INVENTION
[0028] The present invention will be further described in detail hereinafter through speci?c embodiments in combina tion with the drawings. [0029] Referring to FIG. 1, an embodiment of the present invention provides a colourful and bright diamond, with shape and construction of “round seventy-four facets type of
colourful and bright diamon ”, in particular comprising main crown facets 1 and main pavilion facets 2, both in number of 8 and each accounting for 88%~92% of the area of its own
portion. [0030]
One table facet 3 is provided at the top end of a
crown portion, 8 crown star facets 4 are provided between the
edge lines of the table facet and the two neighbouring main crown facets 1, a crown arrow star facet 5 is provided from the bottom of the crown star facet 4 to between two neighbouring main crown facets 1 above a girdle, and an upper girdle right star facet 6 and an upper girdle left star facet 7 are provided at two sides under the crown arrow star facet 5 and above the
girdle, respectively. [0031] The numbers of the crown star facets 4, the crown arrow star facets 5, the upper girdle right star facets 6 and the upper girdle left star facets 7 are each 8, and the total area of them is 8%~12% of the area of the crown portion.
[0032]
In a pavilion portion of said round seventy-four
facets type of colourful and bright diamond, a pavilion arrow star facet 8 is provided under the girdle between two main
pavilion facets 2, with the height of it being half of that of the main pavilion facet 2; a lower girdle right star facet 9 and a lower girdle left star facets 10 are provided at two sides above the pavilion arrow star facet 8 and under the girdle, respec tively; the numbers of the pavilion arrow star facets 8, the lower girdle right star facets 9 and the lower girdle left star facets 10 are each 8 and the total area of them is 8%~12% of
the area of the pavilion portion; and a bottom tip star facet 11
is provided at the bottom end of the pavilion portion. [0033] Important invention: in order to achieve the above objects, calculation formulas for calculating the gross e?i ciency of light total re?ection of a diamond are found by the
researcher of the present invention after repeating experi ments in long-term research project: [0034] (I) a calculation formula for calculating the gross e?iciency of light total re?ection, when one ?re colour is radiated from each main pavilion facet of a diamond, is:
WIMN; [0035]
(II) a calculation formula for calculating the gross
e?iciency of light total re?ection, when two equally powerful ?re colours are radiated from each main pavil ion facet of a diamond, is: W:2 MN.
two main crown facets outside the edge line of the table facet; a crown arrow star facet 5 is provided from the bottom of the crown star facet to between two main crown facets above a
girdle; and an upper girdle right star facet 6 and an upper girdle left star facet 7 are provided at two sides under the crown arrow star facet 5 and above the girdle, respectively; the numbers of the crown star facets 4, the crown arrow star
facets 5, the upper girdle right star facets 6 and the upper girdle left star facets 7 are each 8 and the total area of them accounts for 8%~12% of the area of the crown portion. In the
pavilion portion, a pavilion arrow star facet 8 is provided under the girdle between two main pavilion facets 2, with the height of it being half of that of the main pavilion facet; a lower girdle right star facet 9 and a lower girdle left star facets 10 are provided at two sides above the pavilion arrow star
facet and under the girdle, respectively; the numbers of the pavilion arrow star facets 8, the lower girdle right star facets 9 and the lower girdle left star facets 10 are each 8 and the total area of them is 8%~12% of the area of the pavilion portion; and a bottom tip star facet 11 is provided at the bottom end of
the pavilion portion. [0038] The technology of the present invention has the following signi?cant effects: the main crown facets and the main pavilion facets of this diamond have maximized design area and particular angles, and the calculation formulas are found to prove: the gross e?iciency of light total re?ection of such diamond is two 90%. Each main pavilion facet can
re?ect two equally powerful and beautiful ?re colours. Strength of the ?re colours are improved as 12 times than that of a “brilliant type of diamond” which is a “4C” model in the world. Great sublimation in aesthetic value is obtained.
[0039] The technology of the present invention will be fur ther described hereinafter in combination with speci?c embodiments. Taking a “round seventy-four facets type of colourful and bright diamond” as example, it comprises main crown facets 1 and main pavilion facets 2 provided, both in number of 8 and each accounting for 88%~92% of the area of its own portion; the angle between the main crown facet 1 and
the plane of the girdle is 37.5~38.5 degrees; the angle between the main pavilion facet 2 and the plane of the girdle is 40.5~4l .5 degrees. One table facet 3 is provided at the top end of a crown portion, and the width of the table facet is 55.5~58.5% of the diameter of the girdle; a crown star facet 4 is provided between two main crown facets outside the edge line of the table facet, and the angle between the crown star facet and the table facet is of 12~l3 degrees; a crown arrow star facet 5 is provided from the bottom of the crown star facet to between two main crown facets 1 above the girdle, and the angle between the crown arrow star facet and the plane of the
girdle is of 35~37 degrees; an upper girdle right star facet 6
[0036] Especially, the second calculation formula reveals the objective law that the diamond can radiate the biggest and
and an upper girdle left star facet 7 are provided at two sides under the crown arrow star facet and above the girdle, respec
the most beautiful ?re colours. The structure and angle of the facets of the colourful and bright diamond are designed
tively, and the angles between them and the plane of the girdle
according to the requirements of the second calculation for
facets 4, the crown arrow star facets 5, the upper girdle right star facets 6 and the upper girdle left star facets 7 are each 8
mula as follows:
are both of 37~40 degrees; the numbers of the crown star
[0037] Referring to FIG. 1, in the technical solution involved by the embodiment of the present invention, in par ticularly, with the “round seventy-four facets type of colour ful and bright diamond” as example, it comprises main crown facets 1 and main pavilion facets 2 provided, both in the
pavilion facets, with the height of it being half of that of the main pavilion facet, and the angle between the pavilion arrow
number of 8 and each accounting for 88%~92% of the area of of its own portion. One table facet 3 is provided at the top end
star facet and the plane of the girdle is of 38~40 degrees; a lower girdle right star facet 9 and a lower girdle left star facet
of a crown portion; a crown star facet 4 is provided between
10 are provided at two sides above the pavilion arrow star
and the total area of them accounts for 8%~12% of the area of
the crown portion. In the pavilion portion, a pavilion arrow star facet 8 is provided under the girdle between two main
Mar. 5, 2015
US 2015/0059405 A1
facet and under the girdle, respectively, and the angles between them and the plane of the girdle are both of 40~43 degrees; the numbers of the pavilion arrow star facets 8, the lower girdle right star facets 9 and the lower girdle left star facets 10 are each 8 and the total area of them accounts for
[0047] The total re?ection lighting rate of the main crown facets: the original total area of the crown portion is 100%, and the area of total re?ection lighting of the actual main crown facets is calculated as 45%, i.e, the total re?ection lighting rate is:
8%~12% of the area of the pavilion portion; a bottom tip star
facet 11 is provided at the bottom end of the pavilion portion, and the width of the bottom tip star facet is 0.1~2% of the diameter of the girdle. The height h of the diamond is 58~61% of the diameter of the girdle; the height h1 of the pavilion portion is 41~43% of the diameter of the girdle; the height h2 of the crown portion is 15~18% of the diameter of the girdle; and the thickness h3 of the girdle is 1~2.5% of the diameter of
M:45%+100%:45%
[0048] The total light re?ection e?iciency of the main pavilion facets: the original total area of the pavilion portion is 100%, and the effective area of total re?ection of the actual thin arrow main pavilion facets is calculated as 15%, the effective area of total re?ection lighting of the main crown
facets is 45%; i.e, the total light re?ection ef?ciency is
the girdle.
N:15%+45%:33%.
[0040] A ?rst important technical measure: in order to make the diamond to get the biggest and the most beautiful
the diamond is WIMN:45%>
(19) United States (12) Patent Application Publication (10) Pub. No.: US 2015/0059405 A1 Qiantai (54)
(43) Pub. Date:
COLORFUL AND BRIGHT DIAMOND
(71) ApplicantszHe Qiantai, (U S); Huang HaiXin, Nanning City (CN)
Publication Classi?cation
(51) Int. Cl. A44C 17/00 (52)
(72)
Inventor:
Mar. 5, 2015
(2006.01)
U.S. Cl.
He Qiantai, Liuzhou (CN)
CPC .................................... .. A44C 17/00 (2013.01) USPC
............................................................ ..
63/32
(21) App1.No.: 14/473,764 (22) Filed:
Aug. 29, 2014
(57)
Related US“ Application Data (63) Continuation-in-part of application No. 14/076,104, ?led on NOV_ 8’ 2013~
(30)
The present invention involves the ?eld ofjewellery products, and eSPeCiany, relates to a 00101111111 and bright diamond Which comprises an even number of main crown facets and an
Foreign Application Priority Data
Aug. 30, 2013
ABSTRACT
(CN) ....................... .. 2013103890566
‘i
even number of main pavilion facets. The colourful and bright diamond has a total re?ection gross e?iciency of two 90% and the optical performance Which is 12 times more than the existing ordinary diamonds.
.
e?
“t
..._....... .
i“ r
m. ,9:
\\'
\
\_
\‘N V
'
‘
'
.-
M
,‘ I
'
i
7 ' - ..“:PQQ““.-h~.-.-.-.-.-.;.»;.¢~. .E..“..“-Y\\\.““ -»~-‘ A»? : “w
~15)? V
Patent Application Publication
Mar. 5, 2015 Sheet 1 0f 4
US 2015/0059405 A1
\x. “max
.
‘
P:
Fig 1a
Patent Application Publication
xi .
Mar. 5, 2015 Sheet 2 0f4
US 2015/0059405 A1
Patent Application Publication
Mar. 5, 2015 Sheet 3 0f 4
US 2015/0059405 A1
Patent Application Publication
Mar. 5, 2015 Sheet 4 0f 4
US 2015/0059405 A1
Mar. 5, 2015
US 2015/0059405 A1
COLORFUL AND BRIGHT DIAMOND FIELD OF THE INVENTION
[0001]
The present invention relates to the ?eld of j ewelry,
and in particular to a colourful and bright diamond which can radiate the biggest and the most beautiful ?re colours. BACKGROUND OF THE INVENTION
[0002] Diamond has the strongest lustre and the most beau tiful ?re colours and thus is known as “the king of gems”,
[0012] Preferably, the angle between the crown star facet and the table facet is 12~l3 degrees. [0013] Preferably, the angle between the crown arrow star facet and the plane of the girdle is 35~37 degrees.
[0014] Preferably, the angle between the upper girdle right star facet and the plane of the girdle and the angle between the upper girdle left star facet and the plane of the girdle are both
37~40 degrees.
way.
[0015] Preferably, the numbers of the crown star facets, the crown arrow star facets, the upper girdle right star facets and the upper girdle left star facets are each 8, and the total area of them accounts for 8%~12% of the area of the crown portion.
[0003] However, due to complexity of re?ection of the ?re colours of the diamond and historical limitations, the gross ef?ciency of the ?re colours being re?ected from diamonds
[0016] Preferably, the angle between the pavilion arrow star facet and the plane of the girdle is 38~40 degrees.
which has been specially loved and pursued by people all the
currently popular worldwide is very low, resulting in optical
[0017] Preferably, the angle between the lower girdle right
properties of related diamond very poor. Therefore, the ?re colours of diamonds favourite to contemporary people fail to
star facet and the plane of the girdle and the angle between the lower girdle left star facet and the plane of the girdle are both
meet ideal demands.
40~43 degrees.
SUMMARY OF THE INVENTION
[0004] The present invention aims to provide a colourful and bright diamond, which can radiate the biggest and the most beautiful ?re colours, to solve the above problems. [0005] In order to achieve the above objects, the technical solution of the present invention is as follows.
[0006] A colourful and bright diamond, with shape and construction of “round seventy-four facets type of colourful and bright diamon ”, in particular comprising main crown facets and main pavilion facets, both in number of 8 and each accounting for 88%~92% of the area of its own portion. [0007] One table facet is provided at the top end of a crown portion, a plurality of crown star facets are provided between
the edge lines of the table facet and two neighbouring main crown facets, a crown arrow star facet is provided from the bottom of the crown star facet to between two neighbouring main crown facets above a girdle, and an upper girdle right star facet and an upper girdle left star facet are provided at two sides under the crown arrow star facet and above the girdle,
respectively. [0008]
[0018] Preferably, the numbers of the pavilion arrow star facets, the lower girdle right star facets and the lower girdle left star facets are each 8, and the total area of them accounts
for 8%~12% of the area of the pavilion portion.
[0019] Preferably, the width of the bottom tip star facet is 0.l~2% of the diameter of the girdle.
[0020] Preferably, the height of the diamond is 58~6l% of the diameter of the girdle; the height hl of the pavilion portion is 4l~43% of the diameter of the girdle; the height h2 of the crownportion is 15~l 8% of the diameter of the girdle; and the thickness h3 of the girdle is l~2.5% of the diameter of the
girdle. [0021] A colourful and bright diamond is provided by the present invention, and it is proved by experiments that: using the technology of the invention, diamonds and gems, when styles changed and materials replaced, can obtain the same
superb optical effects. Therefore, the technology is applied to diamonds and gems with styles changed and materials replaced, which is always within the scope of protection of the present invention.
The numbers of the crown star facets, the crown
arrow star facets, the upper girdle right star facets and the upper girdle left star facets are each 8, and the total area of them accounts for 8%~12% of the area of the crown portion. [0009] In a pavilion portion, a pavilion arrow star facet is
BRIEF DESCRIPTION OF THE DRAWINGS
[0022]
FIGS. 1, 2 and 3 are schematic views of a “round
provided under the girdle between two main pavilion facets,
seventy-four facets type of colourful and bright diamond” provided by an embodiment of the present invention,
with the height of it accounting for half of that of the main pavilion facet; a lower girdle right star facet and a lower girdle
wherein:
left star facet are provided at two sides above the pavilion arrow star facet and under the girdle, respectively; the num
dimensioning,
[0023]
FIG. 1 is a front view, FIG. 1a is a schematic view of
bers of the pavilion arrow star facets, the lower girdle right
[0024]
FIG. 2 is a top view of the crown portion, and
star facets and the lower girdle left star facets are each 8, and
[0025]
FIG. 3 is a bottom view of the pavilion portion. the
the total area of them accounts for 8%i12% of the area of the
pavilion portion; and a bottom tip star facet is provided at the
bottom end of the pavilion portion. [0010] Preferably, the main crown facets and the main pavilion facets are provided, both in number of 8 and the area
of each accounting for 88%~92% of its ownportion; the angle between the main crown facet and the plane of the girdle is
37.5~38.5 degrees; and the angle between the main pavilion facet and the plane of a girdle is 40.5~4l .5 degrees. [0011] Preferably, the width of the table facet is 56~58% of the diameter of the girdle.
facets in the above ?gures are named as follows: 1. main
crown facet; 2. main pavilion facet; 3. table facet; 4. crown star facet; 5. crown arrow star facet; 6. upper girdle right star facet; 7. upper girdle left star facet; 8. pavilion arrow star
facet; 9. lower girdle right star facet; 10. lower girdle left star facet; 11. bottom tip star facet; [0026] FIG. 4 is a schematic diagram of re?ection principle of ?re colours of a “brilliant type of diamond”; and
[0027] FIG. 5 is a schematic diagram of re?ection principle of ?re colours of a colourful and bright diamond.
Mar. 5, 2015
US 2015/0059405 A1
DETAILED DESCRIPTION OF THE PRESENT INVENTION
[0028] The present invention will be further described in detail hereinafter through speci?c embodiments in combina tion with the drawings. [0029] Referring to FIG. 1, an embodiment of the present invention provides a colourful and bright diamond, with shape and construction of “round seventy-four facets type of
colourful and bright diamon ”, in particular comprising main crown facets 1 and main pavilion facets 2, both in number of 8 and each accounting for 88%~92% of the area of its own
portion. [0030]
One table facet 3 is provided at the top end of a
crown portion, 8 crown star facets 4 are provided between the
edge lines of the table facet and the two neighbouring main crown facets 1, a crown arrow star facet 5 is provided from the bottom of the crown star facet 4 to between two neighbouring main crown facets 1 above a girdle, and an upper girdle right star facet 6 and an upper girdle left star facet 7 are provided at two sides under the crown arrow star facet 5 and above the
girdle, respectively. [0031] The numbers of the crown star facets 4, the crown arrow star facets 5, the upper girdle right star facets 6 and the upper girdle left star facets 7 are each 8, and the total area of them is 8%~12% of the area of the crown portion.
[0032]
In a pavilion portion of said round seventy-four
facets type of colourful and bright diamond, a pavilion arrow star facet 8 is provided under the girdle between two main
pavilion facets 2, with the height of it being half of that of the main pavilion facet 2; a lower girdle right star facet 9 and a lower girdle left star facets 10 are provided at two sides above the pavilion arrow star facet 8 and under the girdle, respec tively; the numbers of the pavilion arrow star facets 8, the lower girdle right star facets 9 and the lower girdle left star facets 10 are each 8 and the total area of them is 8%~12% of
the area of the pavilion portion; and a bottom tip star facet 11
is provided at the bottom end of the pavilion portion. [0033] Important invention: in order to achieve the above objects, calculation formulas for calculating the gross e?i ciency of light total re?ection of a diamond are found by the
researcher of the present invention after repeating experi ments in long-term research project: [0034] (I) a calculation formula for calculating the gross e?iciency of light total re?ection, when one ?re colour is radiated from each main pavilion facet of a diamond, is:
WIMN; [0035]
(II) a calculation formula for calculating the gross
e?iciency of light total re?ection, when two equally powerful ?re colours are radiated from each main pavil ion facet of a diamond, is: W:2 MN.
two main crown facets outside the edge line of the table facet; a crown arrow star facet 5 is provided from the bottom of the crown star facet to between two main crown facets above a
girdle; and an upper girdle right star facet 6 and an upper girdle left star facet 7 are provided at two sides under the crown arrow star facet 5 and above the girdle, respectively; the numbers of the crown star facets 4, the crown arrow star
facets 5, the upper girdle right star facets 6 and the upper girdle left star facets 7 are each 8 and the total area of them accounts for 8%~12% of the area of the crown portion. In the
pavilion portion, a pavilion arrow star facet 8 is provided under the girdle between two main pavilion facets 2, with the height of it being half of that of the main pavilion facet; a lower girdle right star facet 9 and a lower girdle left star facets 10 are provided at two sides above the pavilion arrow star
facet and under the girdle, respectively; the numbers of the pavilion arrow star facets 8, the lower girdle right star facets 9 and the lower girdle left star facets 10 are each 8 and the total area of them is 8%~12% of the area of the pavilion portion; and a bottom tip star facet 11 is provided at the bottom end of
the pavilion portion. [0038] The technology of the present invention has the following signi?cant effects: the main crown facets and the main pavilion facets of this diamond have maximized design area and particular angles, and the calculation formulas are found to prove: the gross e?iciency of light total re?ection of such diamond is two 90%. Each main pavilion facet can
re?ect two equally powerful and beautiful ?re colours. Strength of the ?re colours are improved as 12 times than that of a “brilliant type of diamond” which is a “4C” model in the world. Great sublimation in aesthetic value is obtained.
[0039] The technology of the present invention will be fur ther described hereinafter in combination with speci?c embodiments. Taking a “round seventy-four facets type of colourful and bright diamond” as example, it comprises main crown facets 1 and main pavilion facets 2 provided, both in number of 8 and each accounting for 88%~92% of the area of its own portion; the angle between the main crown facet 1 and
the plane of the girdle is 37.5~38.5 degrees; the angle between the main pavilion facet 2 and the plane of the girdle is 40.5~4l .5 degrees. One table facet 3 is provided at the top end of a crown portion, and the width of the table facet is 55.5~58.5% of the diameter of the girdle; a crown star facet 4 is provided between two main crown facets outside the edge line of the table facet, and the angle between the crown star facet and the table facet is of 12~l3 degrees; a crown arrow star facet 5 is provided from the bottom of the crown star facet to between two main crown facets 1 above the girdle, and the angle between the crown arrow star facet and the plane of the
girdle is of 35~37 degrees; an upper girdle right star facet 6
[0036] Especially, the second calculation formula reveals the objective law that the diamond can radiate the biggest and
and an upper girdle left star facet 7 are provided at two sides under the crown arrow star facet and above the girdle, respec
the most beautiful ?re colours. The structure and angle of the facets of the colourful and bright diamond are designed
tively, and the angles between them and the plane of the girdle
according to the requirements of the second calculation for
facets 4, the crown arrow star facets 5, the upper girdle right star facets 6 and the upper girdle left star facets 7 are each 8
mula as follows:
are both of 37~40 degrees; the numbers of the crown star
[0037] Referring to FIG. 1, in the technical solution involved by the embodiment of the present invention, in par ticularly, with the “round seventy-four facets type of colour ful and bright diamond” as example, it comprises main crown facets 1 and main pavilion facets 2 provided, both in the
pavilion facets, with the height of it being half of that of the main pavilion facet, and the angle between the pavilion arrow
number of 8 and each accounting for 88%~92% of the area of of its own portion. One table facet 3 is provided at the top end
star facet and the plane of the girdle is of 38~40 degrees; a lower girdle right star facet 9 and a lower girdle left star facet
of a crown portion; a crown star facet 4 is provided between
10 are provided at two sides above the pavilion arrow star
and the total area of them accounts for 8%~12% of the area of
the crown portion. In the pavilion portion, a pavilion arrow star facet 8 is provided under the girdle between two main
Mar. 5, 2015
US 2015/0059405 A1
facet and under the girdle, respectively, and the angles between them and the plane of the girdle are both of 40~43 degrees; the numbers of the pavilion arrow star facets 8, the lower girdle right star facets 9 and the lower girdle left star facets 10 are each 8 and the total area of them accounts for
[0047] The total re?ection lighting rate of the main crown facets: the original total area of the crown portion is 100%, and the area of total re?ection lighting of the actual main crown facets is calculated as 45%, i.e, the total re?ection lighting rate is:
8%~12% of the area of the pavilion portion; a bottom tip star
facet 11 is provided at the bottom end of the pavilion portion, and the width of the bottom tip star facet is 0.1~2% of the diameter of the girdle. The height h of the diamond is 58~61% of the diameter of the girdle; the height h1 of the pavilion portion is 41~43% of the diameter of the girdle; the height h2 of the crown portion is 15~18% of the diameter of the girdle; and the thickness h3 of the girdle is 1~2.5% of the diameter of
M:45%+100%:45%
[0048] The total light re?ection e?iciency of the main pavilion facets: the original total area of the pavilion portion is 100%, and the effective area of total re?ection of the actual thin arrow main pavilion facets is calculated as 15%, the effective area of total re?ection lighting of the main crown
facets is 45%; i.e, the total light re?ection ef?ciency is
the girdle.
N:15%+45%:33%.
[0040] A ?rst important technical measure: in order to make the diamond to get the biggest and the most beautiful
the diamond is WIMN:45%>
