CN105744852B - Jewel with star image and with the system of jewel - Google Patents
Jewel with star image and with the system of jewel Download PDFInfo
- Publication number
- CN105744852B CN105744852B CN201480062099.6A CN201480062099A CN105744852B CN 105744852 B CN105744852 B CN 105744852B CN 201480062099 A CN201480062099 A CN 201480062099A CN 105744852 B CN105744852 B CN 105744852B
- Authority
- CN
- China
- Prior art keywords
- jewel
- waist
- facet
- bizet
- group
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C17/00—Gems or the like
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C17/00—Gems or the like
- A44C17/001—Faceting gems
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C17/00—Gems or the like
- A44C17/02—Settings for holding gems or the like, e.g. for ornaments or decorations
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C17/00—Gems or the like
- A44C17/04—Setting gems in jewellery; Setting-tools
-
- 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
Landscapes
- Adornments (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
The present invention relates to a kind of jewels with star image and a kind of system with jewel, jewel to have：One waist, jewel have maximum cross section extension size on the waist；One pavilion portion for carrying the facet of multiple pavilion portions, the pavilion portion are adjacent to waist below waist；One bizet for carrying multiple bizet facets, the bizet are adjacent to waist above waist, which has：One flat desktop, first group of bizet facet and second group of bizet facet, each first bizet facet is tapered towards waist and has the broadside abutted against on the desktop, each second bizet facet has the broadside abutted against on the waist, first group of bizet facet has the angle for 20.5 ° to 24.5 ° relative to waist plane, and second group of bizet facet has the angle for 32 ° to 36 ° relative to waist plane, it is described that there is pentagonal profile in a top view, light is returned along the circle centered on jewel central axes along imaginary section E-F cyclically-varyings.
Description
Technical field
The present invention relates to a kind of jewel with star image and a kind of systems including such jewel.
Background technology
It is known from the state of the art the jewel for being polished into star shape.
For that purpose it is necessary to remove the material area between the ray of star from for example pentagonal basic configuration of stone.
Therefore the grinding technology expended is needed, so that the jewel of frequent very little is polished into star shape.
In addition the known jewel polished using so-called sleeve (Chaton).Such jewel is for example in EP 2 505 096
It is described in A1.
There are one bizet (also referred to as top) and a pavilion portion (also referred to as bottom), institutes for the jewel tool polished using sleeve
Stating bizet, there is limited number of lateral facet (bizet facet) and a flat desktop, the pavilion portion to have limited number of
Facet (facet of pavilion portion).The end opposite with desktop of jewel is configured to tip or is configured to so-called Ka Laite
(Kalette) tip of the rounding of form.
So-called waist (circumferential edge) can be provided between top and bottom.Jewel can be polished into it is symmetrical or
It is asymmetrical.
It is light output (" light return ") for the important another parameter of the present invention.Light output (" light return ") how many is from
The space angle that light on scheduled relatively wide space angle range incident to jewel is oriented relatively narrow (subtended angle is 3 °)
The measurement of observer is returned in range substantially along the symmetry axis of jewel.
Light reflection of the light output based on countless inside.These light reflections are specifically to characterize the angle accordingly polished pass
It is to cause in each facet positioned relative to each other.
In order to calculate light output, 2 505 096 A1 of EP are seen.There is spy according to the jewel of 2 505 096 A1 of EP
Not high light output.
The light seemed in dark region in jewel is subtracted in the light output of jewel seemed in brighter region
The ratio that output divided by the light output in brighter region obtain is understood to be in the comparison between brighter and dark region
Degree.If the value is multiplied by 100, the contrast being expressed as a percentage.
With formulae express, it is suitable for calculate contrast：
Contrast=(light output-in dark region light output) in brighter region/in brighter region
Light output.
In jewel according to prior art, uniform light output (" light return ") is made every effort on entire jewel face.According to
The jewel of the prior art is because without star-shaped image.
Invention content
It is an object of the present invention to than being manufactured more economically on a kind of treasured with star image by generating star outer profile
Stone.
The purpose is real by a kind of jewel with feature as described below and a kind of system with feature as described below
It is existing.Jewel according to the invention with star image has：One waist, jewel have maximum cross section on the waist
Extension size, a pavilion portion for carrying the facet of multiple pavilion portions, which is adjacent to waist below the waist；One with more
The bizet of a bizet facet, the bizet are adjacent to waist above the waist, and there are one flat desktop, first group of hats for bizet tool
Portion's facet and second group of bizet facet, each first bizet facet are tapered towards waist and with abutting against on the desktop
Broadside, each second bizet facet, which has, abuts against broadside on the waist, wherein first group of bizet facet relative to
Waist plane has for 20.5 ° to 24.5 ° of angle, and second group of bizet facet has relative to waist plane and be
32 ° to 36 ° of angle, the jewel has pentagonal profile in a top view, and light is returned along with jewel central axes
Centered on circle along imaginary section E-F cyclically-varyings.
There are one the bizets for carrying multiple bizet facets for the jewel tool, and first group is carved towards the tapered bizet of waist
Face has the angle [alpha] for 22.5 ° ± 3 °, preferably 22.5 ° ± 2 ° relative to waist plane, and second group is abutted against with its broadside
Bizet facet on waist has the angle beta for 34 ° ± 3 °, preferably 34 ° ± 2 ° relative to waist plane, thus only by light
The distribution of intensity therefore reached just obtains the star-shaped image of jewel, without being removed with required material in the prior art.
In general, jewel has the pavilion portion being arranged below bizet.It is certified to be, when also specific for pavilion portion facet selection
When angle, above-mentioned effect can also be enhanced in such jewel.It has been found herein particularly advantageously, it is specified that the jewel
There are one the pavilion portions for carrying the facet of multiple pavilion portions for tool, wherein first group flat relative to waist towards the tapered pavilion portion facet of waist
Promising 43.5 ° ± 3 °, preferably 43.5 ° ± 2 ° of the angle of mask, and second group abuts against the pavilion portion on waist with its broadside and carves
Face has the angle for 50 ° ± 3 °, preferably 50 ° ± 2 ° relative to waist plane.
It provides in principle, all pavilion portion facets or bizet facet belong to the corresponding set of direction with above-mentioned angle position
The tapered facet of waist or another group have facet brimmy on waist, but it is also contemplated that there is also other angles positions
Additional facet, as long as this unobvious interferes desirable image.
In another preferred embodiment it can be stated that jewel has pentagonal profile in a top view.
Furthermore it is preferred that it can be stated that jewel is by being made the transparent material of visible spectrum and the refractive index having is
2.0 to 2.4.
Particularly preferably it can be stated that jewel is made of cubic zirconium dioxide (" cubic zirconia ").
In another preferred embodiment it can be stated that radially being surveyed in the longitudinal axis relative to jewel respectively
Amount is to be measured at 2/3rds position of the radius for the circumscribed circle for surrounding jewel profile, tapered towards waist at first group
The corresponding angular bisector of facet and second group of contrast towards the light output between the tapered facet in center in corresponding facet
It is upper to be at least 50%, more preferably at least 70%, especially preferably at least 80%.
It is equipped with bracket if it is jewel, preferred to provide, the claw for fixing jewel of bracket is arranged with its broadside
In the region for abutting against that group of facet on waist.By the design scheme according to the invention of facet, jewel is with its broadside
It those of abuts against on waist in the region of facet and seems dark.Seem dark region by covering jewel, also increases
Strong star impression.
System according to the invention includes jewel and bracket according to the present invention, wherein the claw overlap joint jewel of bracket
Edge, claw shape and are arranged in the region of the bizet facet at second group so that the visible face of jewel is by alternately convex and recessed
The edge line of shape defines.
Preferably, the visible face of the jewel forms the face of five ray type stars.
Description of the drawings
Other advantages of the present invention are obtained according to attached drawing and affiliated description of the drawings.It is shown here：
Fig. 1 a to 1g show a kind of view of embodiment of the invention from different direction of observations,
Fig. 2 a to 2b show the view together with the system of bracket according to the jewel of Fig. 1,
Fig. 3 shows the schematic diagram of the position for defining facet angle,
Fig. 4 shows the chart for showing light output (" light return ") of the straight section for the jewel according to Fig. 5,
Fig. 5 shows the diagram for showing measurement line position for light output (" light return ") chart in Fig. 4,
Fig. 6 shows the figure for showing light output (" light return ") for the jewel section along the circle according to Fig. 7
Table,
Fig. 7 shows the diagram for showing measurement line position of the chart for the light output (" light return ") in Fig. 6,
Fig. 8 shows the diagram of the light for showing to come out from jewel of the chart for light output (" light return "),
Fig. 9 a show the photograph diagram of the image of jewel according to the invention, and
Fig. 9 b show the photograph diagram of the image of jewel according to prior art.
Specific implementation mode
Fig. 1 a are shown ... in a side view a kind of embodiment of jewel 1 according to the invention.It can be seen that bizet 2 is (on also referred to as
Portion), pavilion portion 3 (also referred to as bottom), waist 4, desktop 5.Waist is the following region between bizet and pavilion portion, and jewel is in the area
There is its maximum cross section extension size on domain.Waist plane E is schematically shown, this is that its normal vector is parallel to the jewel longitudinal axis
That plane and jewel of line L has its maximum cross section extension size in the plane.
Fig. 1 b show jewel 1 according to the invention with another side view.
Fig. 1 c illustrate jewel 1 according to the invention with the vertical view on bizet 2.Here it will be seen that two kinds of bizet is carved
Face 6,7.Here, five bizet facets 6 are abutted against with its tip on waist.Other five bizet facets 7 abut against waist with broadside
In portion 4.
Fig. 1 d show jewel 1 according to the invention with another side view.
Fig. 1 e illustrate jewel 1 according to the invention with the vertical view in pavilion portion 3.It is carved with two kinds of pavilion portion in pavilion portion 3
Face 8,9.Here, the pavilion portion facet of group 8 is abutted against with its tip on waist.In addition the pavilion portion facet of group 9 is abutted against with broadside
On waist 4.For clarity, it abandons and reference numeral is set to all facets.
Fig. 1 f illustrate jewel 1 according to the invention with the perspective on bizet 2.
Fig. 1 g show jewel 1 according to the invention with another side view.
The system that Fig. 2 a show jewel 1 and bracket 10 and claw (Krappe) 11 according to the invention with sectional elevation.
Fig. 2 b are to overlook the system for illustrating jewel 1 and bracket 10 according to the invention.Bracket is designed so that claw 11
The region dark respectively of cap jewel 1 and the impression for therefore emphasizing prominent star.For clarity, only two of which claw
Equipped with reference numeral.
Fig. 3 shows the schematic diagram of jewel 1 according to the invention, for defining angle position of the facet relative to waist plane E
It sets.Therefore, facet is measured in the projection facet shown and between waist plane relative to the angle of waist plane.It is presented in figure
Angle need not be consistent with value according to the invention.
Fig. 4 is showing along the distribution of the light output (" light return ") of the imaginary section A-B by jewel, in order to be compared
The jewel is configured to traditional jewel or is configured to jewel 1 according to the invention.Here, block curve shows to polish for tradition
Jewel light output distribution, and dashed curve describes the distribution of the light output of jewel 1 according to the invention.It is clear that
The amount of light output in edge region is obviously smaller than in the jewel of tradition polishing in jewel 1 according to the invention.Change speech
It, pair between the light output in the region of one of the ray of star and the light output in the region between two rays of star
It is bigger than in the prior art in jewel according to the invention than degree.Regarding for star is generated in jewel 1 according to the invention as a result,
Feel impression.
Fig. 5 shows the position L ' for measuring line A-B of the chart for the light output (" light return ") in Fig. 4.It is big to measure line
It causes at the half of the height of triangle CDE, wherein referring to the height between C and bottom edge DE.
Fig. 6 is showing along the distribution of the light output (" light return ") of the imaginary section E-F of the circle by jewel, in order into
Row relatively jewel is configured to traditional jewel or is configured to jewel 1 according to the invention.Here, block curve is shown for passing
The distribution of the light output of the jewel of system polishing, and dashed curve describes the distribution of the light output of jewel 1 according to the invention.It is clear
, the apparent ratio of amount of the light output in jewel 1 according to the invention in the region of the facet tapered towards center is in court
It is small in the region of the facet tapered to waist 4.In jewel 1 according to the invention, light output periodically changes in terms of azimuth
Become, thus generates the eye impressions of star.And in jewel according to prior art, the light output along imaginary section E-F does not have
Apparent cyclically-varying is shown, to not generate such impression in jewel according to prior art.
Fig. 7 shows the position for measuring line E-F along circle of the chart for the light output (" light return ") in Fig. 6
L".Line E-F is measured at one about on the circle in central axes pair, which, which is located to measure from inside to outside, substantially surrounds jewel
(1) at 2/3rds position of the radius of the circumscribed circle of profile.
Fig. 8 is the light for showing to come out from jewel for the chart of the light output (" light return ") in Fig. 4 and 6
Diagram.
Fig. 9 a show the photograph diagram of jewel 1 according to the invention.It can be clearly seen that the relatively dark space between symmetry axis
Domain.Thus the eye impressions of star are generated in jewel 1 according to the invention.
Fig. 9 b show the photograph diagram of jewel according to prior art, do not generate the eye impressions of star in the jewel.
It is noted that illustrating for angle for the sake of complete, a whole angle corresponds to 360 °.
Claims (10)
1. the jewel with star image, which is characterized in that the jewel (1) has：
One waist (4), jewel have maximum cross section extension size on the waist,
One pavilion portion (3) for carrying the facet of multiple pavilion portions, the pavilion portion are adjacent to waist below the waist (4)；
One bizet (2) for carrying multiple bizet facets, the bizet are adjacent to waist above the waist (4), the bizet (2)
Have：
--- a flat desktop,
--- first group of (6) bizet facet, each first bizet facet are tapered towards waist (4) and with abutting against the table
Broadside on face,
--- second group of (7) bizet facet, each second bizet facet have the broadside abutted against on the waist (4), wherein
Described first group of (6) bizet facet has the angle (α) for 20.5 ° to 24.5 °, and institute relative to waist plane (E)
State second group of (7) bizet facet relative to waist plane (E) to have the angle (β) for being 32 ° to 36 °, the jewel (1) is overlooked
There is pentagonal profile in figure, and
Light is returned along the circle centered on jewel central axes along imaginary section E-F cyclically-varyings.
2. jewel according to claim 1, which is characterized in that first group (8) are towards the tapered pavilion portion facet phase of waist (4)
There is the angle (γ) for 43.5 ° ± 3 ° for waist plane (E), and second group (9) abut against the pavilion on waist with broadside
Portion's facet has the angle (δ) for 50 ° ± 3 ° relative to waist plane (E).
3. jewel according to claim 2, which is characterized in that first group (8) are towards the tapered pavilion portion facet phase of waist (4)
There is the angle (γ) for 43.5 ° ± 2 ° for waist plane (E), and second group (9) abut against the pavilion on waist with broadside
Portion's facet has the angle (δ) for 50 ° ± 2 ° relative to waist plane (E).
4. the jewel according to one of claims 1 to 3, which is characterized in that the jewel (1) is by transparent for visible spectrum
Material be made and the refractive index that has is 2.0 to 2.4.
5. jewel according to claim 4, which is characterized in that the jewel (1) is made of cubic zirconium dioxide.
6. the jewel according to one of claims 1 to 3, which is characterized in that respectively on the longitudinal axis edge relative to jewel (1)
It radially outward measures and is measured at 2/3rds position of the radius for being the circumscribed circle for surrounding jewel (1) profile, at first group
(6) contrast towards the tapered facet of waist (4) and second group (7) towards the light output between the tapered facet in center is in phase
It answers and is at least 50% on the corresponding angular bisector of facet.
7. jewel according to claim 6, which is characterized in that respectively the longitudinal axis relative to jewel (1) radially to
External pelivimetry is to be measured at 2/3rds position of the radius for the circumscribed circle for surrounding jewel (1) profile, in first group of (6) direction
The tapered facet of waist (4) and second group (7) towards the light output between the tapered facet in center contrast in corresponding facet
Corresponding angular bisector on be at least 70%.
8. jewel according to claim 7, which is characterized in that respectively the longitudinal axis relative to jewel (1) radially to
External pelivimetry is to be measured at 2/3rds position of the radius for the circumscribed circle for surrounding jewel (1) profile, in first group of (6) direction
The tapered facet of waist (4) and second group (7) towards the light output between the tapered facet in center contrast in corresponding facet
Corresponding angular bisector on be at least 80%.
9. system, including：
Jewel according to one of claim 1 to 8,
Bracket, wherein the edge of the claw overlap joint jewel of bracket,
It is characterized in that, claw (11) shapes and is arranged in the region of (7) bizet facet at second group so that jewel (1)
Visible face is defined by the alternately edge line of convex and spill.
10. system according to claim 9, which is characterized in that the visible face of the jewel (1) forms five ray type stars
Face.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA888/2013A AT515136B1 (en) | 2013-11-15 | 2013-11-15 | Gemstone with star-shaped appearance |
| ATA888/2013 | 2013-11-15 | ||
| PCT/AT2014/000192 WO2015070266A2 (en) | 2013-11-15 | 2014-10-27 | Gem having a stellar appearance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105744852A CN105744852A (en) | 2016-07-06 |
| CN105744852B true CN105744852B (en) | 2018-10-26 |
Family
ID=52020871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480062099.6A Active CN105744852B (en) | 2013-11-15 | 2014-10-27 | Jewel with star image and with the system of jewel |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20160249714A1 (en) |
| EP (1) | EP3068254B1 (en) |
| CN (1) | CN105744852B (en) |
| AT (1) | AT515136B1 (en) |
| WO (1) | WO2015070266A2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108497638B (en) * | 2017-02-27 | 2023-12-05 | 深圳鸳鸯金楼珠宝股份有限公司 | Diamond and pavilion processing method thereof, diamond and pavilion structure |
| EP3378346B1 (en) * | 2017-03-21 | 2023-01-18 | Omega SA | Stone and method for manufacturing same |
| TWD195924S (en) * | 2017-09-21 | 2019-02-11 | 日商貞松股份有限公司 | Gem |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5072549A (en) * | 1986-09-22 | 1991-12-17 | Harold Johnston | Method of cutting gemstones and product |
| CN101909475A (en) * | 2008-01-09 | 2010-12-08 | 株式会社微笑智能 | Ornamental diamond having two-stage pavilion |
| CN102669897A (en) * | 2011-03-07 | 2012-09-19 | D.施华洛世奇两合公司 | A gemstone with a chaton cut |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3788097A (en) * | 1971-03-30 | 1974-01-29 | Colorant Schmuckstein Gmbh Fa | Brilliant having plural rings of facets, each having an odd number of facets |
| USD375914S (en) * | 1994-07-05 | 1996-11-26 | Fancoldi, R.T. | Diamond |
| DE19734036A1 (en) * | 1997-08-06 | 1999-02-11 | Helmut Buerger | Process for determining a gemstone cut with high reflection, process for grinding a gemstone with high reflection and cut gemstone with high reflection |
| USD411133S (en) * | 1998-09-01 | 1999-06-22 | Noe Alvarado | Hexagon shaped diamond |
| US6430963B1 (en) * | 2000-08-30 | 2002-08-13 | Simka Diamonds Corporation | Diamond cut |
| IL146079A (en) * | 2001-10-19 | 2004-06-20 | Michael Kedem | Rounded rectangular gemstone |
| US6578380B1 (en) * | 2002-01-24 | 2003-06-17 | Diaco | Hexagonal brilliant cut diamond |
| USD481327S1 (en) * | 2002-06-04 | 2003-10-28 | Nelson Jewellery Arts Company Ltd. | Pentagonal cutting diamond |
| US6990833B2 (en) * | 2002-09-23 | 2006-01-31 | Smith Allen L | Faceted circular cut diamond |
| CN1223442C (en) * | 2002-12-17 | 2005-10-19 | 全球股份有限公司 | Jewelry decorants, diamond and square zirconium and their cutting method |
| US20050011226A1 (en) * | 2003-07-14 | 2005-01-20 | David So | Precious stone cut and method of making |
| US20050081563A1 (en) * | 2003-08-18 | 2005-04-21 | Yair Riemer | Gemstone cut |
| US7225642B2 (en) * | 2003-09-09 | 2007-06-05 | Simka Diamonds | Diamond cut |
| US20050144980A1 (en) * | 2004-01-05 | 2005-07-07 | Robert Shaw | Setting for diamonds or diamond shaped stones |
| USD513393S1 (en) * | 2004-04-28 | 2006-01-03 | Gitanjali Gems Limited | Jupiter cut jewel |
| US20060026991A1 (en) * | 2004-07-20 | 2006-02-09 | Naotake Shuto | Method for cutting diamond and diamond proportion |
| USD550116S1 (en) * | 2004-12-02 | 2007-09-04 | Mordechay Torgeman | Gemstone |
| US20070261440A1 (en) * | 2006-05-09 | 2007-11-15 | Mark Webb | Liberty cut gemstone |
| US20150052947A9 (en) * | 2006-08-08 | 2015-02-26 | Zev W. Weitman | Gemstone cut |
| JP2008054838A (en) * | 2006-08-30 | 2008-03-13 | Komiya:Kk | Diamond |
| USD567138S1 (en) * | 2007-05-04 | 2008-04-22 | Sundiamond Usa, Corp. | Hexagon shaped diamond or similar article |
| US8353181B2 (en) * | 2007-05-04 | 2013-01-15 | Worldwide Diamond Trademarks Ltd. | Heart shaped diamond cut having hearts and arrows pattern |
| JP3138424U (en) * | 2007-06-01 | 2008-01-10 | ヴァーグ株式会社 | 72-sided proportion diamond |
| JP2009100857A (en) * | 2007-10-22 | 2009-05-14 | Nidec Sankyo Corp | Personal adornment |
| US20120079853A1 (en) * | 2010-10-01 | 2012-04-05 | Blasbichler Guenther | Gem with brilliant cut |
| US20130291589A1 (en) * | 2012-05-03 | 2013-11-07 | Anthony Ritchie | Silicon Carbide Princess Cut Gemstone |
| US20160166021A1 (en) * | 2014-12-11 | 2016-06-16 | Hasenfeld-Stein, Inc. | Round cut gemstone exhibiting excellent optical brilliance |
-
2013
- 2013-11-15 AT ATA888/2013A patent/AT515136B1/en active
-
2014
- 2014-10-27 CN CN201480062099.6A patent/CN105744852B/en active Active
- 2014-10-27 WO PCT/AT2014/000192 patent/WO2015070266A2/en active Application Filing
- 2014-10-27 EP EP14809746.2A patent/EP3068254B1/en active Active
-
2016
- 2016-05-13 US US15/154,241 patent/US20160249714A1/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5072549A (en) * | 1986-09-22 | 1991-12-17 | Harold Johnston | Method of cutting gemstones and product |
| CN101909475A (en) * | 2008-01-09 | 2010-12-08 | 株式会社微笑智能 | Ornamental diamond having two-stage pavilion |
| CN102669897A (en) * | 2011-03-07 | 2012-09-19 | D.施华洛世奇两合公司 | A gemstone with a chaton cut |
Also Published As
| Publication number | Publication date |
|---|---|
| AT515136A1 (en) | 2015-06-15 |
| AT515136B1 (en) | 2016-12-15 |
| EP3068254B1 (en) | 2018-05-23 |
| WO2015070266A3 (en) | 2015-07-30 |
| EP3068254A2 (en) | 2016-09-21 |
| WO2015070266A2 (en) | 2015-05-21 |
| US20160249714A1 (en) | 2016-09-01 |
| CN105744852A (en) | 2016-07-06 |
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