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| Application No. | Application Title | Issue Date |
| 20050115275 | Rounded rectangular gemstone A rounded rectangular gemstone which comprises a crown provided with a planar table, a pavilion whose facets converge at a cutlet being disposed below said crown, and a girdle extending from said crown to said pavilion, said girdle being substantially perpendicular to s... | 06/02/2005 |
| 20050081563 | Gemstone cut A new method of cutting a gemstone known as the “Riemer” cut is provided. The gemstone has a crown portion, a pavilion portion characterized by having four main pavilion facets and a culet base and girdle portion provided between the crown portion and pavilion porti... | 04/21/2005 |
| 20050050921 | Diamond cut A brilliant gemstone cut, having a crown, a girdle and a pavilion. The crown has a flat table shaped as an equilateral n-sided polygon. The girdle is also multi sided polygon. The corner, lower girdle, bezel and star facets are at significantly angles of inclination, wi... | 03/10/2005 |
| 20050011226 | Precious stone cut and method of making A stone cut and method for cutting a stone that increase the number of facets on the stone as well as the scintillation, brilliance, and light reflectivity of the stone. The cut and method includes cutting angles and increased number of facets that, either separately or... | 01/20/2005 |
| 20050011225 | Gemstone material The invention provides a gemstone material having therein embedded a plurality of dichroic particles. Methods of producing the gemstone material are also provided. The gemstone material can be provided in the form of a slab, faceted gemstone, or cabochon. ... | 01/20/2005 |
| 20050005639 | Precious stone setting A jewelry piece includes a precious stone having a visible upper surface and a body extending below the upper surface, the body having facets that meet to form corners, each facet having a groove at each corner that extends from the corner along only a portion of the fa... | 01/13/2005 |
| 20050005642 | Laser marking system A laser energy microinscribing system, comprising a semiconductor excited Q-switched solid state laser energy source; a cut gemstone mounting system, allowing optical access to a mounted workpiece; an optical system for focusing laser energy from the laser energy source... | 01/13/2005 |
| 20050005641 | Diamond cutting method, enneahedral-cut diamonds and assembly of enneahedral-cut diamonds Disclosed is a diamond cutting method comprising the steps of: forming a square or rectangular table in a piece of gemstone; and forming a pavilion continuous to the table by cutting vertically from each side of the square or rectangular table to define the four lower-g... | 01/13/2005 |
| 20050005640 | Gemstone and corresponding method of cutting A gemstone having a crown, a girdle and a pavilion, wherein the girdle is shaped such that, when viewed in plan view, it is primarily bounded by four pairs of parallel straight edges. Three of the four pairs of edges are spaced by roughly equal spacing D1, wh... | 01/13/2005 |
| 20050000246 | Method of faceting of gemstones to produce spiraling effect Cut gemstones, and methods for producing such gemstones, providing a spiraling effect on the crown. The gemstone cutting method includes cutting crown facets such that they radiate in a spiral fashion from a central facet. The spiraling effect can be achieved by cutting... | 01/06/2005 |
