Matches 1 - 50 out of 233 1 2 3 4 5 >

AcclaimIP-ad

Match Document Document Title
9025247 Decorative, ornamental, or jewelry articles having arrays of diffraction gratings  
An article comprising (i) a substantially flat substrate bearing a set of diffraction gratings, and (ii) a jewelry mounting secured to the substrate. The gratings occupy areas that correspond to a...
9016089 Heart shaped diamond cut and method having hearts and arrows pattern  
A heart shaped diamond possessing a hearts and arrows pattern characteristic comprising: eight main crown facets symmetrically aligned relative to one another, with each of the eight main crown...
8869556 Jewelry piece or ring  
The invention provides a piece or article of jewelry that is made from a metal support including a plate having an upper surface and lower surface with an upstanding peripheral rim on the upper...
8844319 Cut gemstone providing a specific optical pattern  
A gemstone cut with a table facet, where the gemstone receives existing light from around the viewer and the facets on the bottom of the diamond effectively reflect the existing light back into...
8834177 Computer-implemented method of and system for teaching an untrained observer to evaluate a gemstone  
A computer-implemented method teaches a user to evaluate a gemstone, such as a cut diamond. The method includes providing a computer system connected to an apparatus capable of capturing an image...
8813519 Modified princess cut diamond having hearts and arrows pattern and method  
A modified princess cut diamond and method of forming a modified princess cut diamond into a symmetrical shape possessing a hearts and arrows pattern characteristic of the true hearts and arrows...
8769987 Gemstone  
The present invention relates to a gemstone comprising a girdle, a crown, and a pavilion. The crown has a table, ten star facets surrounding the table, ten bezel facets aligned between the star...
8707733 Cut gemstone providing a specific optical pattern  
A gemstone cut with a table facet, where the gemstone receives existing light from around the viewer and the facets on the bottom of the diamond effectively reflect the existing light back into...
8616192 Round brilliant cut gemstone and method for cutting the same  
The invention relates to a gemstone (10) comprises a girdle (13), a crown (11) and a pavilion (12). The crown (11) comprises a table (14), eight star facets (15) surrounding the table (14), eight...
8584329 Jewelry setting and process for setting precious stones  
The present invention relates to a method of setting stones, preferably precious stones like diamonds, in a mounting comprising (a) setting a base metal having a floor with a central cavity; (b)...
8490429 Article of jewelry having repulsive magnetic elements and methods of manufacturing  
An article of jewelry including a pliable strand; and a plurality of precious or semiprecious objects movably positioned along the pliable strand. Each of the plurality of objects including a...
8479538 Enhancing the optical characteristics of a gemstone  
Various embodiments described herein comprise a gemstone or other piece of jewelry, which incorporates one or more diffractive optical elements to enhance the fire displayed by the gemstone. In...
8381545 Triangular star shaped diamond having hearts and arrows pattern  
A triangular star shaped diamond adapted to display a hearts and arrows pattern when exposed to light comparable to the hearts and arrows pattern in a round diamond, comprising: six main crown...
8353181 Heart shaped diamond cut having hearts and arrows pattern  
A heart shaped diamond possessing a hearts and arrows pattern characteristic comprising: six main crown facets symmetrically aligned relative to one another, with each of the six main crown facets...
8317521 Computer-implemented method of and system for teaching an untrained observer to evaluate a gemstone  
A computer-implemented method teaches a user to evaluate a gemstone, such as a cut diamond. The method includes providing a computer system connected to an apparatus capable of capturing an image...
8314989 Decorative, ornamental, or jewelry articles having arrays of diffraction gratings  
A flat substrate bears a set of flat, coplanar diffraction gratings; a jewelry mounting is secured to the substrate. The gratings are arranged to occupy corresponding areas of the substrate that...
8297075 Gemstone cut  
A gemstone cut into a round stone and method of cutting a gemstone are disclosed herein. A crown having a table may be surrounded by eight star sets. The eight star sets may be surrounded by eight...
8233218 Decorative, ornamental, or jewelry articles having diffraction gratings  
An article comprises a volume of material having at least one faceted or curved surface, and at least one diffraction grating on at least one surface of the article. The diffraction grating...
8215127 Diamond having two-stage pavilion  
An ornamental diamond is provided as an extremely bright diamond with numerous reflection patterns when viewed from above its table facet and crown facets. The diamond has the same crown as the...
8192713 Method of incorporating a mark in CVD diamond  
A method of incorporating a mark of origin, such as a brand mark, or fingerprint in a CVD single crystal diamond material, includes the steps of providing a diamond substrate, providing a source...
8181482 Cut gemstone exhibiting excellent optical brilliance  
A gemstone including a substantially rectangular girdle, a crown extending in a first direction from the girdle, and a pavilion extending in a second direction from the girdle opposite the first...
8156760 Gemstone cut  
A novel gemstone cut that has 162 facets such that the crown has 65 separate facets and the pavilion has 97 separate facets.
8071066 Method and apparatus for improving the quality of diamonds and other gemstones  
The present disclosure relates to methods for improving the quality of diamonds by eliminating internal defects, such as cracks and vacant volumes, without the use of filler materials such as...
8069688 Gemstones and methods for controlling the appearance thereof  
Methods of fabricating improved gemstones and gemstones thus obtained are described. Roughness is introduced on facets of a gemstone through application of nanometer and/or micrometer sized...
8056363 Method for producing a highly refractive composite gemstone, and product  
A method for providing a protective coating and enhanced optical qualities to a gemstone. The method includes coating a first portion and a second portion of a gemstone with TiO2 doped with...
8033136 Enhancing the optical characteristics of a gemstone  
Various embodiments described herein comprise a gemstone or other piece of jewelry, which incorporates one or more diffractive optical elements to enhance the fire displayed by the gemstone. In...
7992410 Modified princess cut diamond having hearts and arrows pattern and method  
A modified princess cut diamond and method of forming a modified princess cut diamond into a symmetrical shape possessing a hearts and arrows pattern characteristic of the true hearts and arrows...
7971452 Triangular shaped diamond which displays hearts and arrows pattern  
A triangular shaped diamond adapted to display a hearts and arrows pattern when exposed to light comparable to the hearts and arrows pattern in a round diamond, comprising: six main crown facets,...
7951444 Multi-stage enamelled dial  
The dial with an enamel coating (2) includes a base plate (1) made of ceramic material with portions in relief (4, 8) obtained by partial or through shaping or machining, formed by an insert (10)...
7910083 Coloured diamond  
A diamond layer of single crystal CVD diamond which is coloured, preferably which has a fancy colour, and which has a thickness of greater than 1 mm.
7887628 Thick single crystal diamond layer method for making it and gemstones produced from the layer  
A layer of single crystal CVD diamond of high quality having a thickness greater than 2 mm. Also provided is a method of producing such a CVD diamond layer.
7596967 Encrusted diamond  
An encrusted gemstone comprising a base diamond having a crown with a table surface, a pavilion, and a recessed seat in the table surface, an insert diamond having a pavilion matching said...
7526928 Multi-color gemstones and gemstone coating deposition technology  
The invention provides a gemstone or a decorative object having at least one surface bearing a thin film coating. In some embodiments, there is provided a gemstone having an appearance...
7398658 Gemstone marking system and method  
Diamonds are marked by applying apertured stencils bearing identifying indicia to the girdles, applying a fusible coating material over the apertured stencils, and then heating the coating...
7290404 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...
7284396 Method and system for laser marking in the volume of gemstones such as diamonds  
A method and an apparatus for laser marking indicia in the volume of gemstones such as diamonds, the indicia being made up of a plurality of microscopic dot-shaped marks whose build-up can be...
7251619 Computer implemented method, computer program product, and system for gem evaluation  
System and method for providing a gem assessment based upon proportional parameter values relating to the proportions of a gem, such as a diamond. A gem cut quality rating is provided. The system...
7249471 Cut design of diamonds providing plenty of visual-perceptible reflection for ornamental use and observation method thereof  
A cut design of an ornamental diamond and an observation method of the diamond which an observer can perceive a more beauty, are disclosed. The cut design is a round brilliant cut comprising a...
7228602 Method of encapsulating material from humans or animals in a natural gemstone and its product  
A method of creating a diamond includes the steps of creating entry points and internal passages in a natural or synthetic diamond, infiltrating a mixture comprising ashes produced from living...
7228856 Diamond cutting method and diamond provided by the method  
Ten of pavilion main facets are formed with reference to the previously formed five of first pavilion main facets in which an initial first main facet is formed in a position centered on a line...
7225642 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...
7160617 Boron doped diamond  
A layer of single crystal boron doped diamond produced by CVD and having a total boron concentration which is uniform. The layer is formed from a single growth sector, or has a thickness exceeding...
7146827 Mixed cut gemstone  
A mixed cut gemstone comprising a girdle, a crown above the girdle and a pavilion below the girdle. The crown has a girdle break, a table break and a table. The table break is cut with triangular...
7137275 Coatings for gemstones and other decorative objects  
The invention provides a decorative object comprising a transparent or translucent substrate having a body and at least one surface bearing a thin film coating. The coating imparts in the...
7128974 Thick single crystal diamond layer method for making it and gemstones produced from the layer  
This invention relates to diamond and more particularly to diamond produced by chemical vapour deposition (hereinafter referred to as CVD). According to a first aspect of the invention, there is...
7062940 Carved pearl  
A pearl including a nucleus optionally including a gem and a nacre coating. The nacre coating partially coats but does not fully coat the nucleus thereby exposing at least a portion of the nucleus.
7000607 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...
6990833 Faceted circular cut diamond  
A circular cut diamond, with appropriate dimensions, to greatly enhance the brilliancy, scintillation, and dispersion of a circular cut diamond and to produce a larger-looking diamond per unit...
6928834 Jewellery setting  
The invention provides a setting for a precious stone comprising a support for a precious stone; contact means for establishing a contact between the support and a stone within the support; a...
6915663 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...
Matches 1 - 50 out of 233 1 2 3 4 5 >