A gemstone including: a table defining a first area; a culet defining a second area with a size equal to a size of the first area; and a scanable indicia positioned in the gemstone between the table and the culet.

A gemstone including: a table defining a first area; a culet defining a second area with a size equal to a size of the first area; and a scanable indicia positioned in the gemstone between the table and the culet.

The invention relates to the field of jewelry, specifically to a diamond with eighty-one facets having a ten hearts and ten arrows inner structure and a cutting method thereof. The diamond comprises a table facet, ten main crown facets and ten main pavilion facets; a crown star facet is disposed at a junction of two adjacent main crown facets with the table facet; a crown small facet is disposed at a junction of two adjacent main crown facets with the crown star facet; a small sector is disposed at a junction of the main crown facet with the crown small facet; and two main pavilion facet auxiliary surfaces are disposed at a junction of two adjacent main pavilion facets. The cutting method comprises a division of a pavilion, a crown and a girdle, the pavilion cutting and the crown cutting. The shaped diamond has very good brilliance, fire and sparkle.

An artificial jewel with internal light source may be configured for removable attachment to a region of human skin. The artificial jewel with internal light source may be assembled from a shell, a base-plate, and an electronics-assembly. A portion of the electronics-assembly may be disposed between an inside surface of the shell and an inside surface of the base-plate. The electronics-assembly may include at least one light source that may reside between the shell and the base-plate. The electronics-assembly may include a push button that may extend out beyond a bottom of the base-plate. A bottom of the base-plate may have a sticky adhesive layer for removable attachment to the region of human skin. An exterior surface of the shell may be faceted. The shell may be optically transparent. A distal portion of the push button may physically touch the region of human skin.

A gemstone includes a crown, a pavilion, and a girdle disposed between the crown and the pavilion. The girdle has an elliptical cross-section with a major axis and a minor axis. The surface of the gemstone is generally divided into a number of groups of interlocking facets disposed at a variety of angles. The groups of facets comprising the surface of the crown generally include star facets, upper intermediate crown facets, lower intermediate crown facets, main crown facets, and upper girdle facets. The upper girdle facets generally abut an upper edge of the girdle. The groups of facets comprising the surface of the pavilion include culet-adjacent facets, candle facets, main pavilion facets, and lower girdle facets. The lower girdle facets generally abut a lower edge of the girdle.

A gemstone includes a crown, a pavilion, and a girdle disposed between the crown and the pavilion. The girdle has an elliptical cross-section with a major axis and a minor axis. The surface of the gemstone is generally divided into a number of groups of interlocking facets disposed at a variety of angles. The groups of facets comprising the surface of the crown generally include star facets, upper intermediate crown facets, lower intermediate crown facets, main crown facets, and upper girdle facets. The upper girdle facets generally abut an upper edge of the girdle. The groups of facets comprising the surface of the pavilion include culet-adjacent facets, candle facets, main pavilion facets, and lower girdle facets. The lower girdle facets generally abut a lower edge of the girdle.

A round stone is intended for being inserted contiguously with other similar stones to as to conceal the setting of the stones. Facets are bevel-formed between the girdle and the pavilion. Grooves, open at the two ends thereof, are formed, as by sawing in a plane perpendicular to the axis, in the facets to receive the setting claws.

A decorative element comprising a faceted transparent body having a front surface and a back surface, and a coating on at least part of the back surface of the faceted transparent body. The coating comprises a reflective layer of semiconductor material and a layer of lacquer over the reflective layer, and the reflective layer of semiconductor material has a thickness of at least about 400 nm or at least about 250 nm. Methods of making a decorative element, uses of the decorative element, a switch cover comprising the decorative element, and a switch comprising a sensor for detecting actuation of the switch and a cover protecting the sensor and comprising the decorative element are also described.

A decorative element comprising a faceted transparent body having a front surface and a back surface, and a coating on at least part of the back surface of the faceted transparent body. The coating comprises a reflective layer of semiconductor material and a layer of lacquer over the reflective layer, and the reflective layer of semiconductor material has a thickness of at least about 400 nm or at least about 250 nm. Methods of making a decorative element, uses of the decorative element, a switch cover comprising the decorative element, and a switch comprising a sensor for detecting actuation of the switch and a cover protecting the sensor and comprising the decorative element are also described.

A jewelry head for mounting a precious or semi-precious gem to an article of jewelry, the jewelry head having a ferrimagnetic body with an inner cavity configured to accept a precious or semi-precious gem; and a near field communication circuit having a near field communication chip electrically connected to an antenna, where the antenna is wrapped around and against the ferrimagnetic body.