CN113263417A - Diamond cutting method and diamond - Google Patents
Diamond cutting method and diamond Download PDFInfo
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- CN113263417A CN113263417A CN202110496928.3A CN202110496928A CN113263417A CN 113263417 A CN113263417 A CN 113263417A CN 202110496928 A CN202110496928 A CN 202110496928A CN 113263417 A CN113263417 A CN 113263417A
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- long side
- processed
- cutting
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- 239000010432 diamond Substances 0.000 title claims abstract description 129
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 122
- 238000005520 cutting process Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000005498 polishing Methods 0.000 claims description 6
- 230000001154 acute effect Effects 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 abstract description 2
- 241000284156 Clerodendrum quadriloculare Species 0.000 description 2
- 235000009781 Myrtillocactus geometrizans Nutrition 0.000 description 1
- 240000009125 Myrtillocactus geometrizans Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/06—Grinders for cutting-off
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C17/00—Gems or the like
- A44C17/007—Special types of gems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
- B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Abstract
The invention discloses a diamond cutting method and a diamond, comprising the following steps: s1: providing a diamond to be processed, wherein the waist of the diamond to be processed is provided with four rectangular long side surfaces which are connected with each other, and a corner is defined between every two adjacent long side surfaces; s2: selecting a long side surface, and removing part of the material of the diamond close to the long side surface from the direction from the long side surface to the center of the diamond to be processed so as to form a rough cutting waist surface near the position of the original long side surface; s3: and finely cutting and finishing the rough cut waist surface to form a first waist surface and a second waist surface which are perpendicular to the crown surface of the diamond to be processed and are adjacent, wherein one end of the first waist surface is connected with one end of the second waist surface, the other end of the first waist surface forms a molded line at one corner, and the other end of the second waist surface forms a molded line at the other corner. The invention has the star burst-shaped diamond outer contour line, reduces the weak edge part of the cut of the princess square cut, and concentrates the refracted light to the middle part of the diamond to form a shining star burst-shaped brilliant burst.
Description
Technical Field
The invention relates to the technical field of diamonds, in particular to a diamond cutting method and a diamond obtained by the cutting method.
Background
As the diamond industry has developed, the cutting accuracy of diamonds has become more and more demanding, and different cutting shapes and techniques have been developed. However, the currently used diamond cuts include round multi-facet cuts, princess square cuts, oval cuts, love heart cuts, and ledean cuts, which cannot stay in the conventional form as the demand for diamonds increases, so that the nine-heart one-flower, ten-heart ten-arrow, and plum blossom drill have been developed in hundreds of years, but such cuts mainly change the cut surface inside the form and do not change much from the whole body. Taking blue flame as an example, the diamond has 89 cutting surfaces, 32 surfaces more than that of a standard round drill, the aspect ratio is 50-65%, the full depth ratio is 65-72%, the crown height ratio is 12-14%, the pavilion depth ratio is 47-54%, and the waist thickness ratio is 2-6.5%. The round cut is changed into an octagon through cutting, so that light rays enter the waist edges and are refracted by the lower waist surface stroke to form unique fire colors, but the overall diamond shape is still similar to a round shape and is not broken through greatly.
With the improvement of living standard of people, diamond jewelry is widely used. The quality of diamonds is evaluated mainly from four aspects: color (Colour), Clarity (Clarity), weight (Carat), Cut (Cut) are not changeable because color, Clarity, weight are properties of the diamond itself as it is formed. With the continuous development of cutting technology and the fact that consumers are not satisfied with traditional cutting of diamonds, new cutting can give diamonds better quality embodiment and value improvement, and satisfy better design works.
Disclosure of Invention
Accordingly, the present invention is directed to a method for cutting diamond.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method of cutting a diamond, comprising:
s1: providing a diamond to be processed which is cut in a rectangular shape, wherein the waist of the diamond to be processed is provided with four long side surfaces which are connected with each other and are rectangular, and a corner is defined between every two adjacent long side surfaces;
s2: selecting one long side surface, roughly cutting the long side surface, and removing partial materials of the diamond to be processed, which are close to the long side surface, from the direction from the long side surface to the center of the diamond to be processed so as to form a roughly cut waist surface near the original position of the long side surface, wherein a first distance and a second distance are respectively reserved between the two ends of the roughly cut waist surface and the corners at the two ends of the long side surface;
s3: finely cutting and trimming the rough cut waist surface to form a first waist surface and a second waist surface which are perpendicular to the crown surface of the diamond to be processed, wherein the first waist surface is adjacent to the second waist surface, one end of the first waist surface is connected with one end of the second waist surface, the other end of the first waist surface forms a molded line of one angle, and the other end of the second waist surface forms a molded line of the other angle;
s4: repeating S2 and S3 until all four long sides are formed, and obtaining the finished diamond.
In the method for cutting a diamond, in S2, the removed part of the material has an obtuse triangle structure from the crown of the diamond to be processed toward the base tip of the diamond to be processed, the obtuse angle part of the obtuse triangle structure is toward the center of the crown of the diamond to be processed, and the two acute angle parts of the obtuse triangle structure form the first distance and the second distance with the angles at the two ends of the long side surface respectively.
The method for cutting a diamond, wherein in S3, two bevels of the obtuse triangle adjacent to the obtuse angle corner are ground to reduce the first distance and/or the second distance.
The method for cutting a diamond, wherein in S3, two bevels of the obtuse triangle adjacent to the obtuse angle corner are ground to reduce the first distance and/or the second distance to zero, so that the two bevels form the first waist surface and the second waist surface.
The method for cutting a diamond as described above, wherein in S3, two bevels of the obtuse triangle structure adjacent to the obtuse angle part are ground to reduce the first distance and/or the second distance to zero, and at the same time, the obtuse angle part of the obtuse triangle extends towards the center of the diamond to be cut, so that the two bevels form the first waist surface and the second waist surface.
The method for cutting diamonds further comprises the following steps between the step S3 and the step S4:
s3.1: polishing one of the first and second waist surfaces;
s3.2: polishing the other of the first waist surface and the second waist surface.
In the method for cutting a diamond, in S2, rough cutting is performed by a laser; in S3, finishing and dressing are performed by a grinding disc.
In the method for cutting diamond, the diamond to be processed is princess square diamond.
In the method for cutting a diamond, the crown portion of the diamond to be processed has a trapezoidal surface near each long side surface, the long side of each trapezoidal surface shares a profile with one long side surface, the short side of each trapezoidal surface faces the center of the diamond to be processed, and the base angle of each trapezoidal surface forms a part of the angle;
the molded line at the joint of one end of the first waist surface and one end of the second waist surface is positioned on the short side of the trapezoidal surface.
A diamond obtained by the method for cutting a diamond according to any one of the above methods.
Due to the adoption of the technology, compared with the prior art, the invention has the following positive effects:
(1) compared with the traditional princess square cut type cutting process, the cutting process has more cut facets, the transmission, reflection and refraction times of light rays passing through the diamond are increased, the brightness and the fire are improved to a certain extent, and the process value of the diamond is increased.
(2) The invention has the star burst-shaped diamond outer contour line, reduces the weak edge part of the cut of the princess square cut, and concentrates the refracted light to the middle part of the diamond to form a shining star burst-shaped brilliant burst.
Drawings
FIG. 1 is a schematic view of a diamond to be cut according to the method of cutting a diamond of the present invention.
Fig. 2 is a schematic view of S2 of the diamond cutting method of the present invention.
Fig. 3 is a schematic view of S3 of the diamond cutting method of the present invention.
Fig. 4 is a schematic view of the crown of the finished diamond of S4 in the diamond cutting method of the present invention.
FIG. 5 is a schematic view of the bottom of the finished diamond of the diamond cutting method of the present invention.
FIG. 6 is a schematic side view of a diamond as a result of the diamond cutting method of the present invention.
Fig. 7 is a perspective view of a diamond product obtained by the diamond cutting method of the present invention.
In the drawings: 1. a long side surface; 11. roughly cutting waist surface; 12. a first waist surface; 13. a second waist surface; 2. an angle; 3. an obtuse triangle structure; 31. a bevel; 4. a trapezoidal surface; 5. a triangular surface; 6. a triangular surface; a. a first distance; b. a second distance.
Detailed Description
The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Fig. 1 is a schematic view of a diamond to be cut according to a diamond cutting method of the present invention, fig. 2 is a schematic view of S2 according to a diamond cutting method of the present invention, fig. 3 is a schematic view of S3 according to a diamond cutting method of the present invention, fig. 4 is a schematic view of S4, i.e., a crown of a finished diamond, fig. 5 is a schematic view of a bottom of a finished diamond according to a diamond cutting method of the present invention, fig. 6 is a schematic view of a side of a finished diamond according to a diamond cutting method of the present invention, fig. 7 is a schematic view of a finished diamond according to a diamond cutting method of the present invention, and fig. 1 to 7 show a diamond cutting method according to a preferred embodiment, including:
s1: providing a diamond to be processed which is cut in a rectangular shape, wherein the waist of the diamond to be processed is provided with four long side surfaces 1 which are connected with each other and are rectangular, and a corner 2 is defined between every two adjacent long side surfaces 1;
s2: selecting a long side face 1, roughly cutting the long side face 1, and removing partial materials of the diamond close to the long side face 1 from the direction from the long side face 1 to the center of the diamond to be processed to form a roughly cut waist face 11 near the position of the original long side face, wherein a first distance a and a second distance b are respectively arranged between the two ends of the roughly cut waist face 11 and the corners 2 at the two ends of the long side face 1;
s3: finely cutting and finishing the rough cut waist surface 11 to enable the rough cut waist surface 11 to form a first waist surface 12 and a second waist surface 13 which are perpendicular to the crown surface 3 of the diamond to be processed, wherein the first waist surface 12 is adjacent to the second waist surface 13, one end of the first waist surface 12 is connected with one end of the second waist surface 13, the other end of the first waist surface 12 forms a molded line of one corner 2, and the other end of the second waist surface 13 forms a molded line of the other corner 2;
preferably, the first waist surface 12 and the second waist surface 13 each have the shape of a trapezoid, the upper base (i.e. the shorter base) of which forms the corner 2, and the lower bases (i.e. the longer bases) of which are connected to each other.
S4: repeating S2 and S3 until all four long sides 1 are formed, and obtaining the finished diamond.
Further, in a preferred embodiment, in S2, the removed material is an obtuse triangle 3 in a view from the crown of the diamond to be processed toward the base tip of the diamond to be processed, the obtuse angle of the obtuse triangle 3 is toward the center of the crown of the diamond to be processed, and the two acute angles of the obtuse triangle 3 form a first distance a and a second distance b with the corners of the two ends of the long side surface 1.
Preferably, the angle of the obtuse angle triangular structure 3 at the obtuse angle is preferably 150 and 170 degrees.
Further, in a preferred embodiment, in S3, the two inclined surfaces 31 of the obtuse triangular structure 3 adjacent to the obtuse angle portion are ground to reduce the first distance a and/or the second distance b.
Specifically, the two inclined surfaces 31 are rough cut waist surfaces 11, and the first waist surface 12 and the second waist surface 13 can be obtained by further processing the two inclined surfaces 31.
Further, in a preferred embodiment, in S3, the two inclined surfaces 31 of the obtuse triangular structure 3 adjacent to the obtuse angle portion are ground to reduce the first distance a and/or the second distance b to zero, so that the two inclined surfaces 31 form the first waist surface 12 and the second waist surface 13.
Further, in a preferred embodiment, in S3, the two inclined surfaces 31 of the obtuse triangle 3 adjacent to the obtuse angle part are ground to reduce the first distance a and/or the second distance b to zero, and the obtuse angle part of the obtuse triangle 3 is extended toward the center of the diamond to be cut, so that the two inclined surfaces 31 form the first waist surface 12 and the second waist surface 13.
It should be noted that the obtuse triangle 3 is mainly used to refer to the general shape of the part, not the strict obtuse triangle, and since the diamond is usually very small in size, the inclined surface 31 of the obtuse triangle 3 may not be able to directly form a plane, which is often an irregular rough surface, and may be a sawtooth surface, a curved surface, etc. even in a microscopic level.
Furthermore, in other preferred embodiments, the obtuse triangular structures 3 can be replaced by other structures with similar shapes, such as trapezoidal structures, arch structures, and the like.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope and the implementation manner of the present invention.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the present invention, a method for cutting a diamond comprises:
s1: providing a diamond to be processed which is cut in a rectangular shape, wherein the waist of the diamond to be processed is provided with four long side surfaces 1 which are connected with each other and are rectangular, and a corner 2 is defined between every two adjacent long side surfaces 1;
s2: selecting a long side face 1, roughly cutting the long side face 1, and removing part of material of the diamond to be processed, which is close to the long side face 1, from the direction from the long side face 1 to the center of the diamond to be processed so as to form a roughly cut waist face 11 near the position of the original long side face, wherein a first distance a and a second distance b are respectively arranged between two ends of the roughly cut waist face 11 and corners 2 at two ends of the long side face 1;
s3: finely cutting and finishing the rough cut waist surface 11 to enable the rough cut waist surface 11 to form a first waist surface 12 and a second waist surface 13 which are perpendicular to the crown surface 3 of the diamond to be processed, wherein the first waist surface 12 is adjacent to the second waist surface 13, one end of the first waist surface 12 is connected with one end of the second waist surface 13, the other end of the first waist surface 12 forms a molded line of one corner 2, and the other end of the second waist surface 13 forms a molded line of the other corner 2;
s3.1: polishing one of the first and second waist surfaces 12 and 13;
s3.2: polishing the other of the first and second waist surfaces 12 and 13;
s4: and repeating the steps from S2 to S3.2 in sequence until all the four long sides 1 are formed, thus obtaining the finished product diamond.
In a further embodiment of the present invention, in S2, rough cutting is performed by laser; in S3, finish cutting and dressing are performed by a grinding disc.
In a further embodiment of the present invention, the diamond to be processed is a princess square diamond.
In a further embodiment of the invention, the crown of the diamond to be processed has a trapezoidal surface 4 near each long side surface 1, the long side of each trapezoidal surface 4 shares a profile with one long side surface 1, the short side of each trapezoidal surface 4 faces the center of the diamond to be processed, and the base angle of each trapezoidal surface 4 forms a part of one corner 2; wherein, the molded line at the joint of one end of the first waist surface 12 and one end of the second waist surface 13 is positioned on the short side of the trapezoidal surface 4.
In other words, after cutting, the first waist surface 12 and the second waist surface 13 divide the entire trapezoidal surface 4 into the triangular surface 5 and the triangular surface 6 which are connected at two corners.
Thus, the 61-facet cut of the original princess square ultimately results in the 65-facet cut of the present invention, with 25 facets in the crown and 40 facets in the pavilion.
Of course, in a state where the profile at the connection between one end of the first waist surface 12 and one end of the second waist surface 13 does not reach the short side of the trapezoidal surface 4, the crown portion still maintains 21 tangent planes, and the pavilion portion has 40 tangent planes. In such an embodiment, a certain starburst effect can also be created.
In the original princess square cut, the trapezoidal face 4 is closest to the edge, and the middle of the lower base (i.e., the longer base) of the trapezoidal face 4 is further from the corner 2, so that it refracts and reflects light weakly. After the cutting of the present invention, firstly the area of the trapezoidal face 4 is reduced, and secondly the trapezoidal face 4 is divided into two triangular faces 5 and 6, the reflected light and the refracted light are enhanced and are more concentrated toward the center of the diamond.
Therefore, the diamond obtained by the cutting method of the invention has starburst-shaped outer contour, and has starburst-shaped reflected light and refracted light, namely, the center and four corners of the diamond have better brightness and fire color.
In a further embodiment of the present invention, there is provided a finished diamond obtained by the method for cutting a diamond as described above.
In a further embodiment of the invention, the angle of the four asterisk-shaped corners of the finished diamond is in the range of 60-80 °. The requirement of the integral shape of the starburst shape is met, and meanwhile, the required structure for inlaying can also be met.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A method of cutting a diamond, comprising:
s1: providing a diamond to be processed which is cut in a rectangular shape, wherein the waist of the diamond to be processed is provided with four long side surfaces which are connected with each other and are rectangular, and a corner is defined between every two adjacent long side surfaces;
s2: selecting one long side surface, roughly cutting the long side surface, and removing partial materials of the diamond to be processed, which are close to the long side surface, from the direction from the long side surface to the center of the diamond to be processed so as to form a roughly cut waist surface near the original position of the long side surface, wherein a first distance and a second distance are respectively reserved between the two ends of the roughly cut waist surface and the corners at the two ends of the long side surface;
s3: finely cutting and trimming the rough cut waist surface to form a first waist surface and a second waist surface which are perpendicular to the crown surface of the diamond to be processed, wherein the first waist surface is adjacent to the second waist surface, one end of the first waist surface is connected with one end of the second waist surface, the other end of the first waist surface forms a molded line of one angle, and the other end of the second waist surface forms a molded line of the other angle;
s4: repeating S2 and S3 until all four long sides are formed, and obtaining the finished diamond.
2. The method for cutting a diamond as set forth in claim 1, wherein said removed portion of said material in said S2 is in an obtuse triangular structure from a view angle from a crown of said diamond to be processed toward a base tip of said diamond to be processed, an obtuse angle portion of said obtuse triangular structure is toward a center of said crown of said diamond to be processed, and two acute angle portions of said obtuse triangular structure form said first distance and said second distance with said angles at both ends of said one of said long side surfaces, respectively.
3. The method of claim 2, wherein in said step S3, two bevels of said obtuse triangle adjacent to said obtuse corner are ground to reduce said first distance and/or said second distance.
4. The method of claim 2, wherein in said S3, two bevels of said obtuse triangular structure adjacent to said obtuse corner are ground to reduce said first distance and/or said second distance to zero, so that said two bevels form said first waist surface and said second waist surface.
5. The method of cutting a diamond as set forth in claim 2, wherein in said S3, two bevels of said obtuse triangle adjacent to said obtuse corner are ground to reduce said first distance and/or said second distance to zero while extending said obtuse corner of said obtuse triangle towards the center of said diamond to be cut so that said two bevels form said first waist and said second waist.
6. The method of claim 1, further comprising, between said S3 and said S4:
s3.1: polishing one of the first and second waist surfaces;
s3.2: polishing the other of the first waist surface and the second waist surface.
7. The method for cutting diamond according to claim 1, wherein in said S2, rough cutting is performed by laser; in S3, finishing and dressing are performed by a grinding disc.
8. The method of claim 1, wherein said diamond to be processed is a princess square diamond.
9. The method of claim 1, wherein said crown portion of said diamond to be processed has a trapezoidal face adjacent to each of said long side faces, the long side of each said trapezoidal face shares a contour with one of said long side faces, the short side of each said trapezoidal face faces toward the center of said diamond to be processed, and the base angle of each said trapezoidal face forms a portion of one of said angles;
the molded line at the joint of one end of the first waist surface and one end of the second waist surface is positioned on the short side of the trapezoidal surface.
10. A diamond obtained by the method for cutting a diamond according to any one of claims 1 to 9.
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| CN202110496928.3A CN113263417B (en) | 2021-05-07 | 2021-05-07 | Diamond cutting method and diamond |
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| CN202110496928.3A CN113263417B (en) | 2021-05-07 | 2021-05-07 | Diamond cutting method and diamond |
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| CN1307961A (en) * | 1999-12-23 | 2001-08-15 | 蒙布兰克-桑普洛有限公司 | Cutting off jewel, especially of diamond |
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2021
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| CN1307961A (en) * | 1999-12-23 | 2001-08-15 | 蒙布兰克-桑普洛有限公司 | Cutting off jewel, especially of diamond |
| US20030192347A1 (en) * | 2002-04-15 | 2003-10-16 | Hadar Yaskil | Gemstone |
| CN101873813A (en) * | 2008-01-22 | 2010-10-27 | 哈森费尔德-斯泰因公司 | Cut gemstone exhibiting excellent optical brilliance |
| CN107205531A (en) * | 2014-11-24 | 2017-09-26 | 路易威登马利蒂公司 | Cut a gem and include the article of this jewel |
| CN108621311A (en) * | 2017-03-21 | 2018-10-09 | 奥米加股份有限公司 | Jewel and its manufacturing method |
| CN208048189U (en) * | 2018-01-16 | 2018-11-06 | 王松光 | A kind of fancy of heronsbill equity section cuts diamond |
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| Title |
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| 刘自强，陈炳忠编著: "《宝石加工工艺学》", 31 January 2011 * |
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| CN113263417B (en) | 2023-06-20 |
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Effective date of registration: 20240206 Address after: Top floor attic, 58 Ninghui Road, Huangpu District, Shanghai, 200010 Patentee after: Shanghai Yu Garden jewelry Fashion Group Co.,Ltd. Country or region after: China Patentee after: Shenzhen Yichai Fangyuan Technology Co.,Ltd. Address before: 200001 attic, top floor, 58 Ninghui Road, Huangpu District, Shanghai Patentee before: Shanghai Yu Garden jewelry Fashion Group Co.,Ltd. Country or region before: China Patentee before: Guangji diamond (Shanghai) Co.,Ltd. |