EP1110472A1 - Cut gemstone, especially cut diamond - Google Patents
Cut gemstone, especially cut diamond Download PDFInfo
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- EP1110472A1 EP1110472A1 EP00125864A EP00125864A EP1110472A1 EP 1110472 A1 EP1110472 A1 EP 1110472A1 EP 00125864 A EP00125864 A EP 00125864A EP 00125864 A EP00125864 A EP 00125864A EP 1110472 A1 EP1110472 A1 EP 1110472A1
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- Prior art keywords
- facets
- rondist
- gem
- cut
- crown
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- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
- A44C17/00—Gems or the like
- A44C17/001—Faceting gems
Definitions
- the present invention relates to a cut gem comprising a first predetermined number of facets cut in the crown and a second number predetermined facets cut in the cylinder head around an axis of symmetry central geometric.
- the gem in particular the cut diamond, points to the observer an image with a general hexagonal symmetry and a set of light reflections and six-pointed star differential colorings where the lobes send shimmering optical effects to the observer.
- the gem consists of diamond or stone with a refractive index and a dispersion roughly equal to those of diamond.
- optical effects of light effects are obtained particularly important.
- said central geometric axis of symmetry corresponds to one of the axes of ternary crystallographic symmetry of the diamond.
- This feature makes it easier and safer to size the table. by cleavage of the diamond along one of the faces of the octahedron.
- the quality of the size of the facets can thus be predetermined and be carried out with great precision.
- the invention also relates to a method for cutting a gem, by peculiar to a diamond characterized by the fact that we first cut all the facets of the crown and the cylinder head and that we then cut the lobed perimeter of the rondist by performing the lobed form with six portions in rounded projection and six rounded hollow portions.
- Figures 1, 2 and 3 are top, bottom and side views of a first mode of execution.
- FIG. 4 represents certain characteristics of the external contour of the first mode executioner.
- Figures 5, 6 and 7 are top, bottom and side views of a second mode of execution.
- the cut gem shown in Figures 1 to 3 is a diamond and includes a crown 10 and a cylinder head 11 separated by a rondist 12.
- the shape geometric cut of this diamond has a hexagonal symmetry with in as a main element of symmetry a hexagonal axis of rotation 14. The facets of the size are therefore arranged around this axis according to an arrangement hexagonal.
- This axis of geometric symmetry preferably corresponds to one of the axes ternary crystallographic of the crystal structure of the diamond, if the shape geometric of the rough diamond to be cut allows it.
- Table 16 and the plan of the rondist 12 will therefore be parallel to one of the facets of the diamond octahedron gross, which will make it possible to obtain the location of table 16 by cleavage of the rough diamond, avoiding tedious sawing as is generally the case necessary when the table is perpendicular to one of the crystallographic axes of order four of the diamond.
- the contour 20 of the rondist 12 seen perpendicular to the hexagonal axis 14, as illustrated in FIG. 4, has a lobed shape with six projecting portions rounded 21 and six rounded hollow portions 22.
- the rondist 12 has a maximum outside diameter D, a minimum inside diameter Di and a diameter medium Dm intermediate.
- the projecting portions 21 have a radius of curvature r2 which is substantially equal to 0.125 D, while the radius of curvature r3 of recessed portions 22 is substantially equal to 0.062 D.
- the crown 10 includes a table 16 with a hexagonal outline or substantially hexagonal depending on the size precision.
- First six facets triangular 25 each share one of their edges with an edge of the table.
- Six second facets 26 are inserted between the first facets and six third facets 27 share one of their edges with a second edge facets 26 and make the connection with the rondist 12.
- the cylinder head 11 has six fourth facets 28 and twelve fifths facets 29 arranged near the rondiste on either side of the edges separating the fourth facets, and six sixth facets 30 arranged near the base 31 partially between two neighboring fourth facets 28.
- the second, third and fourth facets 26, 27, 28, as well as the recessed portions 22 of the rondist are arranged in a first position identical angular around the hexagonal geometric axis, while the first and sixth facets 25, 30 and the projecting portions 21 are found in a second angular position offset by 30 ° from the first angular position. There is therefore a predetermined correspondence between the facets of the crown, those of the cylinder head and the outline of the rondiste.
- the height H of the gem cut between its table and its base is preferably between 0.55 and 0.75 D, advantageously 0.6 D.
- the height Ht of the crown above the plane of the rondist is preferably 0.13 D, and the height Hc of the cylinder head is preferably 0.47 D.
- the first 25, respectively second 26, respectively third 27, respectively fourth 28 and sixth facet 30 respectively make angles included between 10 ° and 25 °, respectively 10 ° and 25 °, respectively 25 ° and 35 °, respectively 35 ° to 55 ° and respectively 25 ° to 35 °.
- the third and fourth facets 27 and 28 on the one hand and on the other of the rondist make an angle of 30 ° and 42 ° with the plane of the rondist 12.
- the method of cutting this gem firstly involves obtaining of the table, preferably by cleavage parallel to one of the faces of the octahedron and then, after the bruting, the size of the different facets of the crown and the breech.
- This cut is made of preferably using a laser cutting device.
- the surfaces of cutting of the rondiste 12 are then polished and cleaned until all traces of carbon black spots due to laser burns have missing.
- the weight of the cut diamond retains approximately 25 to 30% of the weight of the cut diamond. rough diamond; this size therefore does not have a high yield.
- diamonds cut according to this size allow to obtain total reflections internal with hexagonal and lobed image structure and shape, which gives the gem new and original optical effects.
- This symmetry hexagonal combined with total internal reflections on the facets of the breech and a differential refraction on the facets of the crown allows obtain a remarkable and original fire due to its hexagonal distribution and peripheral lobes.
- the second embodiment illustrated in Figures 5 to 7 also includes a crown 10 and a cylinder head 11 separated by a rondist 12.
- the assembly also has a hexagonal geometric shape with an axis of symmetry hexagonal central 14 around which the facets are arranged in a hexagonal symmetry.
- the axis of geometric symmetry can preferably also correspond to one of the ternary axes of symmetry of the structure diamond crystallography.
- Rondiste 12 also has a lobed shape with six rounded projecting portions 21 and six rounded recessed portions 22, the radii of curvature can be similar to those of the first embodiment.
- the crown 10 has here, instead of a table, an apex 50 formed by six first triangular facets 55 arranged in a first position angular around the hexagonal geometric axis 14.
- Six second facets 56 are arranged in a middle position along a second angular position offset by 30 ° from the first angular position and six third facets arranged near the rondist according to the first angular position.
- the breech 12 has twelve fourth facets 58 arranged near the rondist 12 and twelve fifth facets 59 forming the base 61 and arranged each between two fourth facets in an angular position offset by 15 ° compared to that of the fourth facets.
- the recessed portions 22, the first and the third facets 55, 57 and half 58a of the fourth facets are arranged in the first position angular.
- the projecting portions 21, the second facets 56 and the other half 58B fourth facets are arranged in the second angular position.
- the height H between the apex 50 and the base 61 is between 0.5 and 0.75 times the outside diameter D of the rondist 12.
- this height H, that Ht of the crown and that Hc of the cylinder head are 0.52 D, 0.18 D and 0.35 D.
- the first 55, respectively second 56, respectively third 57, respectively fifth facets 59 do with the plane of the rondist of angles between 8 ° and 20 °, respectively 20 ° and 27 °, respectively 20 ° and 32 °, respectively 30 ° to 50 °.
- second and fifth facets 56 and 59 on either side of the rondist make a 23 ° and 34 ° angle with the plane of the rondist 12.
- the cutting process is similar in that the facets are first cut of the crown 10 and of the cylinder head 11 around the hexagonal axis 14, which preferably corresponds to the crystallographic ternary axis of the diamond, and that we then cut the lobed perimeter of the rondiste preferably with a laser.
- the embodiments described above do not have no limiting nature and that they can receive any modifications desirable within the framework as defined by claim 1.
- the cutting according to the invention can also be carried out on other stones and gems with similar refractive index and dispersion, or roughly equal to those of diamond. It may be necessary to adapt the angles of inclination of the facets taking into account the refractive indices of the substitute stones. Thus, the angles of the facets can also be changed according to the shape of the rough stones. Other additional facets can be added. These facets may only be as appropriate number of three per type of facets. The cutout of the rounder may also be obtained by any other suitable means.
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Abstract
Description
La présente invention concerne une gemme taillée comprenant un premier nombre prédéterminé de facettes taillées dans la couronne et un second nombre prédéterminé de facettes taillées dans la culasse autour d'un axe de symétrie géométrique central.The present invention relates to a cut gem comprising a first predetermined number of facets cut in the crown and a second number predetermined facets cut in the cylinder head around an axis of symmetry central geometric.
Pendant bien des siècles, les gemmes furent taillées grossièrement, en cabochon ou en formes diverses souvent irrégulières, avec le seul souci de conserver à la gemme le plus gros volume possible. Ces pierres anciennes semblent souvent ternes et sans éclat, même lorsqu'elles possèdent un beau poli. Actuellement, la technique de taille a beaucoup évolué. La taille est exécutée scientifiquement en observant les lois de l'optique cristalline de façon à obtenir le meilleur rendement des qualités optiques propres aux gemmes transparentes. On cherche notamment à donner aux pierres un éclat maximum, ce qui est le cas lorsqu'elles renvoient à l'extérieur la plus grande partie de la lumière qu'elles reçoivent. D'autre part, le diamant présente une forte dispersion de l'indice de réfraction en fonction de la longueur d'onde de la lumière. Cette forte dispersion est à l'origine du feu que montre le diamant. Il est à noter qu'une lame à face parallèle ne peut montrer de feu, ni une pierre renvoyant la lumière blanche par simple réflexion sans que la lumière soit brisée par réfraction. Il n'y a feu que si la lumière est brisée par des réfractions et réflexions sur des facettes polies du diamant taillé. On a ainsi développé des tailles "Brillant" de plus en plus perfectionnées, telles que décrites par exemple dans le brevet CH 684.301 A5. Ces tailles "Brillant" présentent en général un axe de symétrie géométrique d'ordre quatre par la mise en place de facettes taillées parallèlement à la génératrice du cône qui les enveloppe en nombre de quatre ou de multiples de quatre, telles que les huit étoiles, les seize triangles de couronne et les seize triangles de culasse. Les diamants ainsi taillés renvoient vers l'observateur une image avec une symétrie d'ordre quatre.For many centuries, gems were roughly cut, in cabochon or in various forms often irregular, with the sole concern of keep the gem as large as possible. These ancient stones Often appear dull and dull, even when they have a nice polish. Currently, the pruning technique has evolved a lot. Pruning is performed scientifically by observing the laws of crystalline optics so as to obtain the better yield of the optical qualities specific to transparent gems. We seeks in particular to give the stones a maximum shine, which is the case when they return most of the light outside receive. On the other hand, the diamond has a strong dispersion of the index of refraction as a function of the wavelength of light. This strong dispersion is at the origin of the fire that the diamond shows. It should be noted that a blade facing parallel cannot show fire, nor a stone reflecting white light by simple reflection without the light being broken by refraction. There is fire only if the light is broken by refractions and reflections on polished facets of the cut diamond. We have therefore developed "Brilliant" sizes more and more improved, as described for example in patent CH 684,301 A5. These "Brillant" sizes generally have an axis of geometric symmetry of order four by placing facets cut parallel to the generator of the cone that wraps them in numbers of four or multiples of four, such as the eight stars, the sixteen crown triangles and the sixteen breech triangles. The diamonds thus cut return to the observer an image with a fourth order symmetry.
Il est le but de la présente invention de créer une nouvelle taille de gemme permettant d'obtenir des effets optiques originaux et une conception de forme différente, tout en conservant l'intensité de l'éclat et du feu des tailles "Brillant" connues. Ce but est atteint par les caractéristiques figurant dans la revendication 1.It is the object of the present invention to create a new gem size providing original optical effects and shape design different, while retaining the intensity of the shine and fire of the "Brillant" sizes known. This object is achieved by the features contained in the claim 1.
La gemme, en particulier le diamant ainsi taillé, renvoie vers l'observateur une image présentant une symétrie générale d'ordre hexagonale et un jeu de réflexions de lumière et de colorations différentielles étoilées à six branches où les lobes renvoient vers l'observateur des effets optiques chatoyants.The gem, in particular the cut diamond, points to the observer an image with a general hexagonal symmetry and a set of light reflections and six-pointed star differential colorings where the lobes send shimmering optical effects to the observer.
Selon un mode d'exécution préféré, la gemme est constituée par du diamant ou une pierre comportant un indice de réfraction et une dispersion sensiblement égaux à ceux du diamant.According to a preferred embodiment, the gem consists of diamond or stone with a refractive index and a dispersion roughly equal to those of diamond.
Par ces caractéristiques, on obtient des effets optiques de jeux de lumière particulièrement importants.By these characteristics, optical effects of light effects are obtained particularly important.
Avantageusement, ledit axe de symétrie géométrique central correspond à un des axes de symétrie cristallographiques ternaires du diamant.Advantageously, said central geometric axis of symmetry corresponds to one of the axes of ternary crystallographic symmetry of the diamond.
Cette caractéristique permet d'obtenir une taille facilitée et sûre de la table par clivage du diamant selon l'une des faces de l'octaèdre. En outre, la qualité de la taille des facettes peut ainsi être prédéterminée et s'effectuer avec grande précision.This feature makes it easier and safer to size the table. by cleavage of the diamond along one of the faces of the octahedron. In addition, the quality of the size of the facets can thus be predetermined and be carried out with great precision.
L'invention concerne également un procédé de taille d'une gemme, en particulier d'un diamant caractérisé par le fait que l'on taille en premier lieu toutes les facettes de la couronne et de la culasse et que l'on découpe ensuite le pourtour lobé de la rondiste en effectuant la forme lobée avec six portions en saillie arrondies et six portions en creux arrondies.The invention also relates to a method for cutting a gem, by peculiar to a diamond characterized by the fact that we first cut all the facets of the crown and the cylinder head and that we then cut the lobed perimeter of the rondist by performing the lobed form with six portions in rounded projection and six rounded hollow portions.
D'autres avantages ressortent des caractéristiques exprimées dans les revendications dépendantes et de la description exposant ci-après l'invention plus en détail à l'aide de dessins qui représentent schématiquement et à titre d'exemple deux modes d'exécution.Other advantages emerge from the characteristics expressed in the dependent claims and the following description of the invention further in detail using drawings which represent schematically and as example two modes of execution.
Les figures 1, 2 et 3 sont des vues de dessus, de dessous et latérale d'un premier mode d'exécution.Figures 1, 2 and 3 are top, bottom and side views of a first mode of execution.
La figure 4 représente certaines caractéristiques du contour extérieur de la rondiste du premier mode d'exécution.FIG. 4 represents certain characteristics of the external contour of the first mode executioner.
Les figures 5, 6 et 7 sont des vues de dessus, de dessous et latérale d'un second mode d'exécution.Figures 5, 6 and 7 are top, bottom and side views of a second mode of execution.
La gemme taillée représentée aux figures 1 à 3 est un diamant et comprend
une couronne 10 et une culasse 11 séparées par une rondiste 12. La forme
géométrique de la taille de ce diamant présente une symétrie hexagonale avec en
tant qu'élément de symétrie principal un axe de rotation hexagonal 14. Les
facettes de la taille sont donc arrangées autour de cet axe suivant un arrangement
hexagonal.The cut gem shown in Figures 1 to 3 is a diamond and includes
a
Cet axe de symétrie géométrique correspond de préférence à un des axes
cristallographiques ternaires de la structure cristalline du diamant, si la forme
géométrique du diamant brut à tailler le permet. La table 16 et le plan de la
rondiste 12 seront donc parallèles à une des facettes de l'octaèdre du diamant
brut, ce qui permettra d'obtenir l'emplacement de la table 16 par clivage du
diamant brut, en évitant un sciage fastidieux comme cela est généralement
nécessaire lorsque la table est perpendiculaire à un des axes cristallographiques
d'ordre quatre du diamant.This axis of geometric symmetry preferably corresponds to one of the axes
ternary crystallographic of the crystal structure of the diamond, if the shape
geometric of the rough diamond to be cut allows it. Table 16 and the plan of the
Le contour 20 de la rondiste 12 vu perpendiculairement à l'axe hexagonal
14, tel qu'illustré à la figure 4, présente une forme lobée avec six portions en saillie
arrondies 21 et six portions en creux arrondies 22. Ainsi, la rondiste 12 possède
un diamètre extérieur D maximal, un diamètre intérieur Di minimal et un diamètre
moyen Dm intermédiaire. Les portions en saillie 21 possède un rayon de courbure
r2 qui est sensiblement égal à 0,125 D, tandis que le rayon de courbure r3 des
portions en creux 22 est sensiblement égal à 0,062 D. The
La couronne 10 comprend une table 16 à contour hexagonal ou
sensiblement hexagonal selon la précision de la taille. Six premières facettes
triangulaires 25 partagent chacune une de leurs arêtes avec une arête de la table.
Six secondes facettes 26 sont intercalées entre les premières facettes et six
troisièmes facettes 27 partagent une de leurs arêtes avec une arête des secondes
facettes 26 et font la liaison avec la rondiste 12.The
La culasse 11 possède six quatrièmes facettes 28 et douze cinquièmes
facettes 29 disposées près de la rondiste de part et d'autre des arêtes séparant
les quatrièmes facettes, et six sixièmes facettes 30 disposées près du culot 31
partiellement entre deux quatrièmes facettes 28 voisines.The
Les secondes, troisièmes et quatrièmes facettes 26, 27, 28, ainsi que les
portions en creux 22 de la rondiste sont arrangées selon une première position
angulaire identique autour de l'axe géométrique hexagonal, tandis que les
premières et sixièmes facettes 25, 30 et les portions en saillie 21 se trouvent dans
une seconde position angulaire décalée de 30° de la première position angulaire.
Il y a donc une correspondance prédéterminée entre les facettes de la couronne,
celles de la culasse et le contour de la rondiste.The second, third and
La hauteur H de la gemme taillée entre sa table et son culot est de
préférence comprise entre 0,55 et 0,75 D, avantageusement 0,6 D. La hauteur Ht
de la couronne au-dessus du plan de la rondiste est de préférence 0,13 D, et la
hauteur Hc de la culasse est de préférence 0,47 D. Les premières 25,
respectivement deuxièmes 26, respectivement troisièmes 27, respectivement
quatrièmes 28 et respectivement sixièmes facettes 30 font des angles compris
entre 10° et 25°, respectivement 10° et 25°, respectivement 25°et 35°,
respectivement 35° à 55° et respectivement 25° à 35°.The height H of the gem cut between its table and its base is
preferably between 0.55 and 0.75 D, advantageously 0.6 D. The height Ht
of the crown above the plane of the rondist is preferably 0.13 D, and the
height Hc of the cylinder head is preferably 0.47 D. The first 25,
respectively second 26, respectively third 27, respectively
fourth 28 and
De préférence, les troisièmes et quatrièmes facettes 27 et 28 de part et
d'autre de la rondiste font un angle de 30° et de 42° avec le plan de la rondiste 12.Preferably, the third and
Le procédé de taille de cette gemme comprend en premier lieu l'obtention
de la table, de préférence par clivage parallèlement à une des faces de l'octaèdre
et ensuite, après l'ébrutage, la taille des différentes facettes de la couronne et de
la culasse. On découpe finalement le pourtour lobé de la forme étoilée de la
rondiste 12 avec ses six portions en saillie et en creux. Cette découpe est faite de
préférence à l'aide d'un appareil de découpage à laser. Les surfaces de
découpage de la rondiste 12 sont ensuite polies et nettoyées jusqu'à ce que toutes
traces de taches noires de carbone dues à des brûlures par le laser aient
disparues. Le poids du diamant taillé conserve environ 25 à 30% du poids du
diamant brut; cette taille ne présente donc pas un rendement élevé. Par contre,
les diamants taillés suivant cette taille permettent d'obtenir des réflexions totales
internes présentant une structure et forme d'image hexagonales et lobées, ce qui
confère à la gemme des effets optiques nouveaux et originaux. Cette symétrie
hexagonale combinée à des réflexions totales internes sur les facettes de la
culasse et à une réfraction différentielle sur les facettes de la couronne permet
d'obtenir un feu remarquable et original du fait de sa répartition hexagonale et des
lobes périphériques.The method of cutting this gem firstly involves obtaining
of the table, preferably by cleavage parallel to one of the faces of the octahedron
and then, after the bruting, the size of the different facets of the crown and
the breech. We finally cut the lobed periphery of the star shape of the
Le second mode d'exécution illustré aux figures 5 à 7 comprend également
une couronne 10 et une culasse 11 séparées par une rondiste 12. L'ensemble
présente aussi une forme géométrique hexagonale avec un axe de symétrie
central hexagonal 14 autour duquel sont arrangées les facettes suivant une
symétrie hexagonale. L'axe de symétrie géométrique peut de préférence
également correspondre à un des axes de symétrie ternaires de la structure
cristallographique du diamant. La rondiste 12 possède aussi une forme lobée avec
six portions en saillie arrondies 21 et six portions en creux arrondies 22 dont les
rayons de courbure peuvent être similaires à ceux du premier mode d'exécution.The second embodiment illustrated in Figures 5 to 7 also includes
a
La couronne 10 possède ici, au lieu d'une table, un apex 50 formé par six
premières facettes triangulaires 55 arrangées suivant une première position
angulaire autour de l'axe géométrique hexagonal 14. Six secondes facettes 56
sont arrangées dans une position médiane suivant une seconde position angulaire
décalée de 30° de la première position angulaire et six troisièmes facettes
disposées à proximité de la rondiste suivant la première position angulaire. La
culasse 12 présente douze quatrièmes facettes 58 arrangées à proximité de la
rondiste 12 et douze cinquièmes facettes 59 formant le culot 61 et disposées
chacune entre deux quatrièmes facettes dans une position angulaire décalée de
15° par rapport à celle des quatrièmes facettes.The
Les portions en creux 22, les premières et les troisièmes facettes 55, 57 et
la moitié 58a des quatrièmes facettes sont arrangées suivant la première position
angulaire. Les portions en saillie 21, les secondes facettes 56 et l'autre moitié 58B
des quatrièmes facettes sont disposées suivant la seconde position angulaire.The
La hauteur H entre l'apex 50 et le culot 61 est comprise entre 0,5 et 0,75
fois le diamètre extérieur D de la rondiste 12. De préférence, cette hauteur H, celle
Ht de la couronne et celle Hc de la culasse sont 0,52 D, 0,18 D et 0,35 D.The height H between the
Les premières 55, respectivement deuxièmes 56, respectivement
troisièmes 57, respectivement cinquièmes facettes 59 font avec le plan de la
rondiste des angles compris entre 8° et 20°, respectivement 20° et 27°,
respectivement 20° et 32°, respectivement 30° à 50°. De préférence, les
deuxièmes et cinquièmes facettes 56 et 59 de part et d'autre de la rondiste font un
angle de 23° et 34° avec le plan de la rondiste 12.The first 55, respectively
Le procédé de taille est similaire du fait que l'on taille d'abord les facettes
de la couronne 10 et de la culasse 11 autour de l'axe hexagonal 14, qui
correspond de préférence à l'axe ternaire cristallographique du diamant, et que
l'on découpe ensuite le pourtour de forme lobée de la rondiste de préférence avec
un laser.The cutting process is similar in that the facets are first cut
of the
Il est bien entendu que les modes de réalisation décrits ci-dessus ne présentent aucun caractère limitatif et qu'ils peuvent recevoir toutes modifications désirables à l'intérieur du cadre tel que défini par la revendication 1. En particulier, la taille selon l'invention pourra également être effectuée sur d'autres pierres et gemmes comportant un indice de réfraction et une dispersion similaires ou sensiblement égaux à ceux du diamant. Il y aura éventuellement lieu d'adapter les angles d'inclinaison des facettes en tenant compte des indices de réfraction des pierres de substitution. Ainsi, les angles des facettes pourront également être changés selon la forme des pierres brutes. D'autres facettes supplémentaires pourront être ajoutées. Ces facettes pourront selon le cas uniquement être au nombre de trois par type de facettes. La découpe de la rondiste pourra en outre être obtenue par tous autres moyens adéquats.It is understood that the embodiments described above do not have no limiting nature and that they can receive any modifications desirable within the framework as defined by claim 1. In particular, the cutting according to the invention can also be carried out on other stones and gems with similar refractive index and dispersion, or roughly equal to those of diamond. It may be necessary to adapt the angles of inclination of the facets taking into account the refractive indices of the substitute stones. Thus, the angles of the facets can also be changed according to the shape of the rough stones. Other additional facets can be added. These facets may only be as appropriate number of three per type of facets. The cutout of the rounder may also be obtained by any other suitable means.
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH237099 | 1999-12-23 | ||
CH02370/99A CH693938A5 (en) | 1999-12-23 | 1999-12-23 | Gem cut, especially cut diamond. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1110472A1 true EP1110472A1 (en) | 2001-06-27 |
EP1110472B1 EP1110472B1 (en) | 2004-07-28 |
Family
ID=4232186
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00125864A Expired - Lifetime EP1110472B1 (en) | 1999-12-23 | 2000-11-25 | Cut gemstone, especially cut diamond |
Country Status (8)
Country | Link |
---|---|
US (1) | US6405562B1 (en) |
EP (1) | EP1110472B1 (en) |
JP (1) | JP3569492B2 (en) |
CN (1) | CN1188262C (en) |
CH (1) | CH693938A5 (en) |
DE (1) | DE60012463T2 (en) |
ES (1) | ES2222148T3 (en) |
HK (1) | HK1037308A1 (en) |
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WO2010094089A3 (en) * | 2009-02-20 | 2010-11-18 | Diamscan N.V. | Product improved optical characteristics |
WO2014131293A1 (en) * | 2013-02-26 | 2014-09-04 | Zhang Kunzhi | 81-facet diamond with 10-heart-and-10-arrow structure inside |
FR3028725A1 (en) * | 2014-11-24 | 2016-05-27 | Vuitton Louis Sa | SIZED GEM AND ARTICLE COMPRISING SUCH A GEM |
EP3378346A1 (en) * | 2017-03-21 | 2018-09-26 | Omega SA | Stone and method for manufacturing same |
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- 2000-11-25 EP EP00125864A patent/EP1110472B1/en not_active Expired - Lifetime
- 2000-11-25 DE DE60012463T patent/DE60012463T2/en not_active Expired - Lifetime
- 2000-12-20 JP JP2000386588A patent/JP3569492B2/en not_active Expired - Fee Related
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JP2016500309A (en) * | 2013-02-26 | 2016-01-12 | シャンツェン パーフェクト ラブ ダイアモンド カンパニー リミテッド | An 81-sided diamond with 10 hearts and 10 arrows inside |
WO2014131293A1 (en) * | 2013-02-26 | 2014-09-04 | Zhang Kunzhi | 81-facet diamond with 10-heart-and-10-arrow structure inside |
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FR3028725A1 (en) * | 2014-11-24 | 2016-05-27 | Vuitton Louis Sa | SIZED GEM AND ARTICLE COMPRISING SUCH A GEM |
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RU2689879C2 (en) * | 2014-11-24 | 2019-05-29 | Луи Виттон Малетье | Faceted precious stone and article containing such precious stone |
USD901324S1 (en) | 2015-04-22 | 2020-11-10 | Shenzhen Perfect Love Diamond Co., Ltd. | Diamond with eighty-one facets |
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Also Published As
Publication number | Publication date |
---|---|
CN1188262C (en) | 2005-02-09 |
DE60012463D1 (en) | 2004-09-02 |
ES2222148T3 (en) | 2005-02-01 |
CH693938A5 (en) | 2004-05-14 |
DE60012463T2 (en) | 2005-09-15 |
US6405562B1 (en) | 2002-06-18 |
JP3569492B2 (en) | 2004-09-22 |
CN1307961A (en) | 2001-08-15 |
JP2001204520A (en) | 2001-07-31 |
EP1110472B1 (en) | 2004-07-28 |
HK1037308A1 (en) | 2002-02-08 |
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