EP0883356B1 - Pierre precieuse polie - Google Patents

Pierre precieuse polie Download PDF

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Publication number
EP0883356B1
EP0883356B1 EP97914110A EP97914110A EP0883356B1 EP 0883356 B1 EP0883356 B1 EP 0883356B1 EP 97914110 A EP97914110 A EP 97914110A EP 97914110 A EP97914110 A EP 97914110A EP 0883356 B1 EP0883356 B1 EP 0883356B1
Authority
EP
European Patent Office
Prior art keywords
facets
additional
girdle plane
angle
gemstone
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.)
Expired - Lifetime
Application number
EP97914110A
Other languages
German (de)
English (en)
Other versions
EP0883356A1 (fr
Inventor
Georg Bunz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atelier Bunz GmbH
Original Assignee
Atelier Bunz GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Atelier Bunz GmbH filed Critical Atelier Bunz GmbH
Publication of EP0883356A1 publication Critical patent/EP0883356A1/fr
Application granted granted Critical
Publication of EP0883356B1 publication Critical patent/EP0883356B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 invention relates to a gemstone with the features according to the Preamble of claim 1.
  • Such a gem cut is for example from DE-PS 15 57 625 known where an equal number of shell facets and Bottom facets the appearance and its optical properties establish.
  • DE 27 20 267 C2 shows a diamond that is very has complex structure of ground surfaces, including narrow, triangular facets, grouped together from the area near the tip of the diamond to widen the circumferential side facets.
  • the interplay of the multitude different facets leads in its optical effect also to a complex, rather confusing appearance.
  • the object of the invention is to maintain the original shape of the diamond crystal apply a cut that is brilliant and brightness effect offers a new appearance.
  • this object is according to the characterizing part of claim 1 solved.
  • the fan-like group of additional facets on the lower part leads when viewing the gemstone from the top for the viewer to a reflection such that at the four pyramid-shaped Upper part facets one faceted surface for each facet surface
  • the lighting effect is created in contrast to the previously known rather flat lighting effects in the aforementioned known types of cuts.
  • the fourfold beam of light leads to reflection phenomena, which penetrates the entire surface of the diamond several times becomes.
  • the top facet forms an isosceles triangle.
  • the lower part of the diamond contains four lower part facets 10 ... 13, which also form an isosceles triangle.
  • top facets and bottom facets are by a circumferential facet band 30 perpendicular to the Rondist plane educated.
  • the central additional facet is also an exemplary embodiment formed as a narrow triangle, but it is also possible (not shown), the central additional facet with parallel side edges to be provided, so that their effect is roughly the circumferential Faceted band 30 corresponds.
  • the levels of neighboring additional facets are inclined towards each other at a very acute angle, so that in the illustrated embodiment, the 36 additional facets Gemstone between the lower part facets 10 ... 13 dome-shaped complete below.
  • the angle ⁇ between the upper part facets 20 ... 23 depends on Gemstone between 23 ° and 30 °, the angle ⁇ between the lower part facets 10 ... 13 and the Rondist level is between 34 ° and 43 °.

Landscapes

  • Adornments (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Saccharide Compounds (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Claims (8)

  1. Pierre précieuse dans la partie supérieure et la partie inférieure de laquelle, au-dessus et au-dessous du plan du rondiste, sont taillées respectivement au moins quatre facettes de mêmes dimensions qui présentent une arête de base parallèle, l'angle (α) entre une facette de partie supérieure (20...23) et le plan du rondiste étant inférieur à l'angle (β) entre une facette de partie inférieure (10...13) et le plan du rondiste, caractérisée en ce qu'il est prévu, entre les arêtes latérales des facettes de partie inférieure (1à, 11, 12, 13) respectivement un groupe (40....43) de facettes supplémentaires étroites et triangulaires, partant en éventail d'un plan du rondiste, dont les petits côtés sont jointifs, dans les lignes de liaison entre les pointes des facettes des parties inférieures (10, 11, 12, 13), avec les petits côtés des facettes supplémentaires du groupe voisin respectif.
  2. Pierre précieuse selon la revendication 1, caractérisée en ce que l'angle (α) entre chacune des facettes de partie supérieure (20...23) et le plan du rondiste est de 23° à 30°.
  3. Pierre précieuse selon la revendication 1, caractérisée en ce que l'angle (β) entre chacune des facettes des parties inférieures (10...13) et le plan du rondiste est de 34° à 43°.
  4. Pierre précieuse selon la revendication 1, caractérisée en ce que chaque groupe (40...43) de facettes supplémentaires est constitué d'au moins trois facettes supplémentaires dont les côtés longitudinaux enferment un angle aigu d'environ 5° à 15°.
  5. Pierre précieuse selon la revendication 1, caractérisée en ce que les plans des facettes supplémentaires voisines sont inclinés l'un par rapport à l'autre d'un angle d'environ 1° à 3°, ce qui fait que les facettes supplémentaires, au nombre minimum de 12 au total, terminent la pierre précieuse vers le bas à la manière d'un dôme.
  6. Pierre précieuse selon la revendication 1, caractérisée en ce que le rondiste présente une bande de facettes (30) périphérique.
  7. Pierre précieuse selon la revendication 4, caractérisée en ce que dans chaque groupe (40...43) se trouve une facette supplémentaire centrale dont les petits côtés forment la surface (K) pyramidale de partie inférieure, et à laquelle se rattache sur chacun des deux côtés au moins une facette supplémentaire.
  8. Pierre précieuse selon la revendication 1, caractérisée en ce que le plan du rondiste est de forme circulaire ou carrée.
EP97914110A 1996-02-19 1997-01-30 Pierre precieuse polie Expired - Lifetime EP0883356B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19605876 1996-02-19
DE19605876A DE19605876C1 (de) 1996-02-19 1996-02-19 Geschliffener Edelstein
PCT/DE1997/000196 WO1997029661A1 (fr) 1996-02-19 1997-01-30 Pierre precieuse polie

Publications (2)

Publication Number Publication Date
EP0883356A1 EP0883356A1 (fr) 1998-12-16
EP0883356B1 true EP0883356B1 (fr) 2002-04-17

Family

ID=7785650

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97914110A Expired - Lifetime EP0883356B1 (fr) 1996-02-19 1997-01-30 Pierre precieuse polie

Country Status (9)

Country Link
US (1) US6029474A (fr)
EP (1) EP0883356B1 (fr)
JP (1) JP2000505319A (fr)
AT (1) ATE216199T1 (fr)
AU (1) AU2150897A (fr)
CA (1) CA2242616A1 (fr)
DE (2) DE19605876C1 (fr)
IL (1) IL125385A (fr)
WO (1) WO1997029661A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19734036A1 (de) * 1997-08-06 1999-02-11 Helmut Buerger Verfahren zur Festlegung eines Edelsteinschliffs mit hoher Reflektion, Verfahren zum Schleifen eines Edelsteins mit hoher Reflektion sowie geschliffener Edelstein mit hoher Reflektion
JP3643541B2 (ja) * 2000-08-25 2005-04-27 株式会社ほほえみブレインズ 装飾用ダイヤモンドのカットデザイン
US6564583B2 (en) 2001-04-24 2003-05-20 Martin Gruber Gruber Jewelry with girdle-grooved stone
EP1694155B1 (fr) * 2003-12-02 2009-02-11 Abittan Abrasives & Colour Me & Drop-a-Diamond & Pearl of Diamond & Faceted Rocks 100% Diamond Pierre precieuse a facettes
DE102008046972B4 (de) * 2008-09-12 2016-03-24 Helmut Bürger Facettiert geschliffener Edelstein, insbesondere Diamant
US20120047948A1 (en) * 2010-08-31 2012-03-01 Nirav Modi Multifaceted gemstones with connecting link

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1557625C3 (de) * 1967-01-21 1973-10-25 Bernd 6581 Stipshausen Munsteiner Geschliffener Edelstein
US4020649A (en) * 1976-05-27 1977-05-03 Henry Grossbard Brilliantized step cut diamond
DE3202302C2 (de) * 1982-01-26 1984-01-26 Atelier-Juwel Georg Bunz, 7544 Dobel Geschliffener Edelstein, insbesondere Diamant
CH684301A5 (de) * 1991-03-19 1994-08-31 Diamine S A Schliff-Form für Edelsteine.
DE4210995C2 (de) * 1992-04-02 1997-04-03 Ulrich Dr Freiesleben Geschliffener Edelstein, insbesondere Diamant

Also Published As

Publication number Publication date
IL125385A (en) 2002-11-10
WO1997029661A1 (fr) 1997-08-21
US6029474A (en) 2000-02-29
CA2242616A1 (fr) 1997-08-21
DE59707057D1 (de) 2002-05-23
EP0883356A1 (fr) 1998-12-16
JP2000505319A (ja) 2000-05-09
IL125385A0 (en) 1999-03-12
ATE216199T1 (de) 2002-05-15
AU2150897A (en) 1997-09-02
DE19605876C1 (de) 1997-05-28

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