CN210276172U - 81-facet round cut diamond with crown presenting one-heart-ten-arrow effect - Google Patents
81-facet round cut diamond with crown presenting one-heart-ten-arrow effect Download PDFInfo
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- CN210276172U CN210276172U CN201920628192.9U CN201920628192U CN210276172U CN 210276172 U CN210276172 U CN 210276172U CN 201920628192 U CN201920628192 U CN 201920628192U CN 210276172 U CN210276172 U CN 210276172U
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Abstract
The utility model relates to a crown presents 81 facet circle cut diamond of ten arrow effects of a heart belongs to diamond technical field. The diamond of the utility model comprises a crown part, a pavilion part and a waist part connecting the crown part and the pavilion part, and the diamond has a ten-order central symmetry axis; the number of crown main facets is 41, and the number of pavilion main facets is 40; the crown part is of a symmetrical structure: the crown has 1 table top, the crown side has 10 kite-shaped main facets, 10 triangular star facets and 20 upper waist facets; pavilion is symmetrical structure: with 10 quadrilateral main facets, 20 lower lumbar facets and 10 cardioid facets. The utility model discloses the perfect symmetry of lithodomous crown and pavilion portion, the diamond crown can be simultaneously one heart and ten arrow's effect, and the heart is plump obvious, and the effect of arrow is outstanding.
Description
Technical Field
The utility model relates to the technical field of diamonds, especially, relate to a crown presents 81 facet circle cut type diamonds of ten arrow effects of a heart.
Background
Turkuski in 1919 concluded that an ideal cut in the United states was obtained by deriving diamond cut parameters using geometric optics based on a legacy European cut. In 20 th century and 70 th century, Japanese businessmen discovered that the crown and pavilion of a round bright diamond under certain special cutting parameters can respectively show the effect of eight-heart and eight-arrow, and developed continuously later, and cut-type diamonds with different effects of the hearts such as ten-heart and ten-arrow and twelve-heart and twelve-arrow appear.
However, in the conventional cut-type cutters, no matter whether the eight-heart eight-arrow diamond cut-type cutter, the ten-heart ten-arrow diamond cut-type cutter or the twelve-heart twelve-arrow diamond cut-type cutter, the heart-and-arrow effect of the diamond is the combination of the effect of the crown-and-arrow and the effect of the pavilion heart, the two cannot be observed at the same time, and the observation positions of the crown and the pavilion need to be changed to observe the heart-and-arrow effects respectively during observation; the observation positions of the crown and the pavilion can be freely switched to observe the heart and arrow effects without inlaying the diamond, but the crown and the pavilion are difficult to switch to observe the arrow effects from the crown of the diamond.
Therefore, how to see the hearts and arrows effect in the mosaic diamond at the same time becomes a concern for enterprises, diamond cut researchers, and consumers.
Disclosure of Invention
Accordingly, the present invention provides an 81-facet round cut diamond with a crown portion capable of observing the hearts and arrows effect simultaneously.
An 81-facet round cut diamond with a crown presenting a one-heart-ten-arrow effect comprises a crown, a pavilion and a girdle, wherein the girdle is circular and is positioned between the crown and the pavilion and used for connecting the crown and the pavilion; the diamond has ten central symmetry axes:
the crown part is of a symmetrical structure: the crown is provided with 1 table top, the side surface of the crown is provided with 10 kite-shaped main facets, 10 triangular star facets and 20 triangular upper waist facets, two vertexes of the kite-shaped main facets of the crown are respectively positioned on the table top and the waist, and four edges of the kite-shaped main facets are respectively connected with 2 triangular star facets and 2 triangular upper waist facets; three sides of the triangular star facet are respectively connected with the table top and the kite-shaped main carving surface; three sides of the triangular upper waist facet are respectively connected with the kite-shaped main facet, the other adjacent triangular upper waist facet and the waist;
pavilion is symmetrical structure: a heart-shaped component surface with 10 quadrilateral main facets, 20 lower waist facets and 10 common vertexes, wherein adjacent 2 quadrilateral main facets share one edge, and one vertex of the quadrilateral main facet is positioned on the waist part; 2 symmetrical lower waist facets are arranged between the adjacent 2 quadrilateral main facets and the waist part, and each lower waist facet has three edges which are respectively connected with the quadrilateral main facet, the other adjacent lower waist facet and the waist part; the heart-shaped forming surfaces are triangular and share one edge with the main quadrilateral facet, and share one edge with the other two adjacent heart-shaped forming surfaces respectively, wherein the projection of 10 edges shared by the 10 heart-shaped forming surfaces and the main quadrilateral facet is heart-shaped;
the angle between the kite-shaped main facet and the adjacent waist part is a crown angle, and the range of the crown angle is 28-35.0 degrees; the included angle between the table top and the triangular star facet of the crown is a star facet angle, and the range of the star facet angle is 18-28.0 degrees; the adjacent angle of the crown upper waist facet and the waist is an upper waist small face angle, and the range of the upper waist small face angle is 32.0-41.0 degrees;
the adjacent angle of the pavilion quadrilateral main facet and the waist is a pavilion angle, and the pavilion angle ranges from 40.75 degrees to 43.0 degrees; the angle between the pavilion lower waist small face and the waist is a lower waist small face angle, and the lower waist small face angle ranges from 41.55 degrees to 44.25 degrees; the angle formed by the heart-shaped composition plane and the cross section of the waist circumference is a bottom-center notch plane angle, and the range of the bottom-center notch plane angle is 34-40 degrees.
Further, the girdle surface is a smooth girdle facet or a non-polished girdle facet.
Further, the roundness of the diamond is 99-100%, the full depth ratio is 59.0-65.0%, the table width ratio is 50.0-65%, the crown height ratio is 10-18%, the waist thickness ratio is 1.5-3.0%, the pavilion depth ratio is 43.0-49.0%, the star length ratio is 40-65%, the lower waist length ratio is 70-85%, the bottom tip ratio is 0-0.8%, the table top eccentricity ratio is 0-0.6%, the bottom tip eccentricity ratio is 0-0.6%, the table top bottom tip dislocation ratio is 0-0.6%, and the table top edge ratio is 14%.
Further, the roundness of the diamond is 100%, the full depth ratio is 59.7%, the table width ratio is 57.3%, the crown height ratio is 13.2%, the waist thickness ratio is 1.9%, the pavilion depth ratio is 44.6%, the star length ratio is 60.1%, the lower waist length ratio is 77%, the bottom-tip ratio is 0%, the table top eccentricity ratio is 0%, the bottom-tip eccentricity ratio is 0%, the table top bottom-tip dislocation ratio is 0%, and the table top edge ratio is 14%; correspondingly: the crown angle is 32 degrees, the pavilion angle is 41 degrees, the star facet angle is 24 degrees, the upper waist facet angle is 37 degrees, the lower waist facet angle is 41.9 degrees, and the adjacent two bottom center facet angles are 34 degrees and 36 degrees.
Compared with the prior art, the utility model provides a beneficial effect that technical scheme brought is: the utility model changes the cutting parameters of the round cut diamond under the existing arrangement of 71-facet round cut diamond, and the manufactured 81-facet round cut diamond can see the effect of one heart and ten arrows from the crown part; the utility model discloses diamond crown and pavilion portion perfect symmetry have reduced diamond light leakage point, and diamond pointed end is in the mesa center, and the deviation is less than 1% for perfect symmetry is presented to a heart, ten arrow effects.
Drawings
The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.
FIG. 1 is a schematic diagram of a diamond structure according to an embodiment of the present invention;
FIG. 2 is a top view of the diamond construction of FIG. 1;
FIG. 3 is a bottom view of the diamond construction of FIG. 1;
fig. 4 is a schematic diagram of the heart and arrow effect observed for diamonds according to embodiments of the present invention.
Reference numerals:
1-a crown portion; 11-a table top; 12-kite-shaped main facets; 13-star facets; 14-upper lumbar facet; 2-a pavilion; 21-quadrilateral main facets; 22-lower waist facet; 23-heart shaped composing face; 3-waist part; 4-arrow; 5-heart shape.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides an 81-facet round cut diamond with a crown exhibiting a hearts and arrows effect, comprising a crown 1, a pavilion 2 and a girdle 3, the diamond having ten central symmetry axes.
The waist 3 is round and is positioned between the crown 1 and the pavilion 2 and used for connecting the crown 1 and the pavilion 2; the waisted portion 3 may be a smooth girdle facet, which may be maintained as a rough surface for weight retention or may be maintained without grinding the smooth facet.
The number of crown 1 cut facets is 41, the number of pavilion 2 cut facets is 40, and the total number of main facets is 81.
With reference to fig. 1 and 2, the crown 1 is of symmetrical structure: the crown 1 has 1 table 11 at the top, 10 kite-shaped main facets 12 at the sides of the crown 1, 10 triangular star facets 13 and 20 triangular upper waist facets 14.
Two vertexes of the kite-shaped main facet 12 are respectively positioned on the table top 11 and the waist part 3, and four edges of the kite-shaped main facet 12 are respectively connected with two triangular star facets 13 and two triangular upper waist facets 14; three sides of the triangular star facet 13 are respectively connected with the table-board 11 and the two kite-shaped main carving surfaces 12; three sides of the triangular upper waist facet 14 are respectively connected with the kite-shaped main facet 12, the adjacent other triangular upper waist facet 14 and the waist 3.
With reference to fig. 1 and 3, the pavilion 2 has a symmetrical structure: a cardioid facet having 10 quadrilateral main facets 21, 20 lower waist facets 22 and 10 common vertices. Two adjacent quadrilateral main facets 21 share one edge, and one vertex of each quadrilateral main facet 21 is positioned on the waist 3; two symmetrical lower waist facets 22 are arranged between the adjacent 2 quadrilateral main facets 21 and the waist part 3; the lower waist facet 22 has three sides connected to the main facet 21 of the quadrangle, another lower waist facet 22 adjacent to the main facet, and the waist portion 3; the heart-shaped constituting surfaces 23 are triangular and share one side with the quadrilateral main facet 21, and share one side with the other two adjacent heart-shaped constituting surfaces 23 respectively, wherein the projection of the ten sides shared by the 10 heart-shaped constituting surfaces 23 and the quadrilateral main facet 21 is approximate to a heart shape.
The adjacent angle of the kite-shaped main carving surface 12 and the waist 3 is a crown angle, and the range of the crown angle is 28-35.0 degrees; the included angle between the table top 11 and the triangular star facet 13 of the crown 1 is a star facet angle, and the range of the star facet angle is 18.0-28.0 degrees; the adjacent angle of the upper waist facet 14 of the crown 1 and the waist 3 is an upper waist small face angle, and the range of the upper waist small face angle is 32.0-41.0 degrees; the adjacent angle of the quadrilateral main facet 21 of the pavilion 2 and the waist 3 is a pavilion angle, and the pavilion angle ranges from 40.75 degrees to 43 degrees; the angle between the lower waist facet 22 of the pavilion 2 and the waist 3 is a lower waist facet angle, and the lower waist facet angle ranges from 41.55 degrees to 44.25 degrees; the angle formed by the heart-shaped composition plane and the cross section of the waist circumference is a bottom-center notch plane angle, and the range of the bottom-center notch plane angle is 34-40 degrees.
In the diamond of the embodiment of the utility model, the roundness of the diamond is 99-100%, the full depth ratio is 59.0-65.0%, the table width ratio is 50.0-65%, the crown height ratio is 10-18%, the waist thickness ratio is 1.5-3.0%, the pavilion depth ratio is 43.0-49.0%, the star length ratio is 40-65%, the lower waist length ratio is 70-85%, the bottom tip ratio is 0-0.8%, the table top eccentricity ratio is 0-0.6%, the bottom tip eccentricity ratio is 0-0.6%, the table top bottom tip dislocation ratio is 0-0.6%, and the table top edge ratio is 14%.
More preferably, the roundness of the diamond is 100%, the full depth ratio is 59.7%, the table aspect ratio is 57.3%, the crown height ratio is 13.2%, the waist thickness ratio is 1.9%, the pavilion depth ratio is 44.6%, the star length ratio is 60.1%, the lower waist length ratio is 77%, the bottom-tip ratio is 0%, the table top eccentricity ratio is 0%, the bottom-tip eccentricity ratio is 0%, the table top bottom-tip dislocation ratio is 0%, and the table top edge ratio is 14%; correspondingly: the crown angle is 32 degrees, the pavilion angle is 41 degrees, the star facet angle is 24 degrees, the upper waist facet angle is 37 degrees, the lower waist facet angle is 41.9 degrees, and the adjacent two bottom center facet angles are 34 degrees and 36 degrees.
The diamond is processed by taking the cutting parameters as requirements, and the specific steps are as follows:
step 1: and screening the drill blanks, and selecting the similar three-dimensional square drill blanks for design.
Step 2: the drill blanks are fixed, copper sheets and diamond powder are cut into two parts from the middle part to form 1 table board 11 and a pavilion part 2, one of the two drill blanks is selected for processing, and the processing steps of the other drill blank are the same.
And step 3: the table 11 and the pavilion 2 of the drill blank are fixed and clamped, the outer contour of the drill blank is rounded by high-speed rotation, the waist 3 of the diamond is formed, and the diamond is conical.
And 4, step 4: the girdle 3 of the diamond is clipped by the gripper, the pavilion 2 (conical) is taken as a reference center, and the pavilion 2 of the diamond is evenly ground into 10 quadrangular main facets 21 of the pavilion 2 by the angle of the gripper being 40.75-43 degrees.
And 5: the girdle 3 of the diamond is clamped by the clamping mouth, the pavilion 2 is taken as a reference center, the angle of the clamping mouth is 41.55-44.25 degrees on the quadrangular main facet 21 positioned on the pavilion 2, and 20 lower girdle facets 22 of the pavilion 2 are ground on average.
Step 6: the girdle 3 of the diamond is clamped by the clamping mouth, the pavilion 2 is taken as a reference center, the angle of the clamping mouth is 34-40 degrees on the quadrangular main facet 21 positioned on the pavilion 2, and 10 pavilion 2 heart-shaped composition planes 23 are averagely ground.
And 7: clamping the table top 11 by a clamping nozzle, taking the waist 3 as a reference center, wherein the ratio of the diameters is 50-65%, the angle of the clamping nozzle is 28-35 degrees, and averagely grinding 10 main facets of the crown part 1, and the main facets of the crown part 1 form kite-shaped main facets 12 of the crown part 1 through the subsequent processing of each facet of the crown part 1.
And 8: clamping the table top 11 by using a clamping nozzle, taking the waist part 3 as a reference center, wherein the angle of the clamping nozzle is 18-28.0 degrees, and then grinding 10 crown part 1 triangular star facets 13 on average.
And step 9: clamping the table top 11 by using a clamping nozzle, taking the waist part 3 as a reference center, wherein the angle of the clamping nozzle is 32-41 degrees, and then grinding 20 upper waist facets 14 of the crown part 1 on average.
The embodiment of the utility model provides an in the cutting parameter, the pavilion angle is the most critical factor, and the change at pavilion angle is greatly influencing the pleasing to the eye of inside light efficiency pattern, and pavilion angle and crown angle become the inverse relation, and the pavilion angle is big more, and crown angle when the inside light efficiency of ten arrows of a heart appears simultaneously is less.
The utility model discloses a diamond in an embodiment, the observer can observe the optical effect of a heart ten arrows simultaneously at crown 1, and the heart is plump obvious, and the effect of arrow is outstanding, as shown in fig. 4.
In fig. 4, there are ten arrows 4, one heart 5 appearing on the table 11 of the crown 1, one heart 5 and ten arrows 4 appearing simultaneously on the crown 11; the arrow 4 has the effect formed by the light and shadow reflection of the pavilion 2 quadrangular main facet 21 on the table 11 and the crown 1 kite-shaped main facet 12, wherein the arrow handle part is the reflection projection of the lower half part of the pavilion 2 quadrangular main facet 21 on the crown 1 kite-shaped main facet 12, and the arrow part is the reflection projection of the upper half part of the pavilion 2 quadrangular main facet 21 on the crown 1 kite-shaped main facet 12; the heart effect is the effect of the presentation of a heart shape consisting of 10 heart-shaped components 23 on the table top 11 of the crown 1.
In summary, the 81-facet round cut diamond with the crown showing the effect of one heart and ten arrows provided by the utility model can make the diamond see the effect of one heart and ten arrows from the crown by changing the cutting parameters of the existing round cut diamond; the utility model discloses diamond crown and pavilion portion perfect symmetry have reduced diamond light leakage point, and diamond pointed end is in the mesa center, and the deviation is less than 1% for perfect symmetry is presented to a heart, ten arrow effects.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (4)
1. An 81-facet round cut diamond with a crown presenting a hearts and arrows effect, the diamond comprising a crown, a pavilion and a girdle, the girdle being circular and located between the crown and the pavilion for connecting the crown and the pavilion; it is characterized in that the diamond has a central symmetry axis for ten times:
the crown part is of a symmetrical structure: the crown is provided with 1 table top, the side surface of the crown is provided with 10 kite-shaped main facets, 10 triangular star facets and 20 triangular upper waist facets, two vertexes of the kite-shaped main facets of the crown are respectively positioned on the table top and the waist, and four edges of the kite-shaped main facets are respectively connected with 2 triangular star facets and 2 triangular upper waist facets; three sides of the triangular star facet are respectively connected with the table top and the 2 kite-shaped main carved surfaces; three sides of the triangular upper waist facet are respectively connected with the kite-shaped main facet, the other adjacent triangular upper waist facet and the waist;
pavilion is symmetrical structure: a heart-shaped component surface with 10 quadrilateral main facets, 20 lower waist facets and 10 common vertexes, wherein adjacent 2 quadrilateral main facets share one edge, and one vertex of the quadrilateral main facet is positioned on the waist part; 2 symmetrical lower waist facets are arranged between the adjacent 2 quadrilateral main facets and the waist part, and each lower waist facet has three edges which are respectively connected with the quadrilateral main facet, the other adjacent lower waist facet and the waist part; the heart-shaped forming surfaces are triangular and share one edge with the main quadrilateral facet, and share one edge with the other two adjacent heart-shaped forming surfaces respectively, wherein the projection of 10 edges shared by the 10 heart-shaped forming surfaces and the main quadrilateral facet is heart-shaped;
the angle between the kite-shaped main facet and the adjacent waist part is a crown angle, and the range of the crown angle is 28-35.0 degrees; the included angle between the table top and the triangular star facet of the crown is a star facet angle, and the range of the star facet angle is 18-28.0 degrees; the adjacent angle of the crown upper waist facet and the waist is an upper waist small face angle, and the range of the upper waist small face angle is 32.0-41.0 degrees;
the adjacent angle of the pavilion quadrilateral main facet and the waist is a pavilion angle, and the pavilion angle ranges from 40.75 degrees to 43.0 degrees; the angle between the pavilion lower waist small face and the waist is a lower waist small face angle, and the lower waist small face angle ranges from 41.55 degrees to 44.25 degrees; the angle formed by the heart-shaped composition plane and the cross section of the waist circumference is a bottom-center notch plane angle, and the range of the bottom-center notch plane angle is 34-40 degrees.
2. The 81-facet round cut diamond of claim 1 having a crown exhibiting a hearts & arrows effect, wherein the girdle surface is a smooth girdle facet or a non-polished girdle facet.
3. The 81-faceted round cut diamond with a crown exhibiting a hearts and arrows effect as claimed in claim 1, wherein the diamond has a roundness of 99% to 100%, a depth-to-depth ratio of 59.0% to 65.0%, an aspect ratio of 50.0% to 65%, a crown height ratio of 10% to 18%, a waist thickness ratio of 1.5% to 3.0%, a pavilion depth ratio of 43.0% to 49.0%, a star length ratio of 40% to 65%, a lower waist length ratio of 70% to 85%, a base-tip ratio of 0% to 0.8%, a table top eccentricity ratio of 0% to 0.6%, a base-tip eccentricity ratio of 0% to 0.6%, a table top base-tip dislocation ratio of 0% to 0.6%, and a table top edge ratio of 14%.
4. The 81 facet round cut diamond of claim 1 having a crown exhibiting a hearts and arrows effect, wherein the diamond has a roundness of 100%, a full depth ratio of 59.7%, a table aspect ratio of 57.3%, a crown height ratio of 13.2%, a waist thickness ratio of 1.9%, a pavilion depth ratio of 44.6%, a star length ratio of 60.1%, a lower waist length ratio of 77%, a base-tip ratio of 0%, a table eccentricity ratio of 0%, a base-tip eccentricity ratio of 0%, a table base-tip dislocation ratio of 0%, and a table edge ratio of 14%; correspondingly: the crown angle is 32 degrees, the pavilion angle is 41 degrees, the star facet angle is 24 degrees, the upper waist facet angle is 37 degrees, the lower waist facet angle is 41.9 degrees, and the adjacent two bottom center facet angles are 34 degrees and 36 degrees.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920628192.9U CN210276172U (en) | 2019-05-05 | 2019-05-05 | 81-facet round cut diamond with crown presenting one-heart-ten-arrow effect |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920628192.9U CN210276172U (en) | 2019-05-05 | 2019-05-05 | 81-facet round cut diamond with crown presenting one-heart-ten-arrow effect |
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| CN210276172U true CN210276172U (en) | 2020-04-10 |
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| CN201920628192.9U Expired - Fee Related CN210276172U (en) | 2019-05-05 | 2019-05-05 | 81-facet round cut diamond with crown presenting one-heart-ten-arrow effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110122994A (en) * | 2019-05-05 | 2019-08-16 | 中国地质大学（武汉） | The 81 facets circle cut diamond of wholeheartedly ten arrow effects is presented in a kind of bizet |
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2019
- 2019-05-05 CN CN201920628192.9U patent/CN210276172U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110122994A (en) * | 2019-05-05 | 2019-08-16 | 中国地质大学（武汉） | The 81 facets circle cut diamond of wholeheartedly ten arrow effects is presented in a kind of bizet |
| CN110122994B (en) * | 2019-05-05 | 2024-01-26 | 中国地质大学（武汉） | 81-facet round-cut diamond with crown presenting one-heart-ten-arrow effect |
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Granted publication date: 20200410 Termination date: 20210505 |
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