A jewelry item includes a thin piece member formed from a gold alloy containing gold (Au) as a first metal element and a second metal element other than gold (Au), a frame member including a third metal element other than the first metal element and the second metal element and a fourth metal element as a metal for an alloy of the third metal, forming a bond with and surrounding a peripheral edge of the thin piece member, and a compound layer containing the first metal element, the second metal element, the third metal element and the fourth metal element is interposed between the thin piece member and the frame member.

A method for manufacturing an external component for watches or jewellery, especially a bracelet, includes the steps of: providing a substrate including a first face opposite to a second face and co-extrusion coating the first face and the second face of the substrate respectively with a first and a second band of synthetic material. The first band forms on the first face a transparent or translucent layer so that all or part of the substrate remains visible.

A method includes the selection of a jewelry blank having a chamber for receiving a gem. The chamber is partially filled with a first layer of UV resin. Cremation remains are placed within the first layer of resin or on the surface of the first layer of resin. Then, UV light is used to cure the first layer of resin. A second layer of resin partially fills the remaining void and is cured. Diamond dust may be added to the top surface of the cured second layer. A final layer of protective resin is added into the remaining space of the chamber and cured to create the finished jewelry piece.

A device comprising: a substrate; a first coating deposited on the substrate; an intermediate coating deposited on the first coating, wherein the first coating is interposed between the substrate and the intermediate coating; and a second coating deposited on the intermediate coating, wherein the intermediate coating is interposed between the first coating and the second coating, and the second coating is outermost and black. The substrate, the first coating, the intermediate coating and the second coating define at least one of a jewelry item and a component of a jewelry item.

Disclosed herein are coated gemstones, coatings for gemstones, methods of coating gemstones, and methods of using coatings on gemstones to avoid blemishes on gemstones. In some embodiments, diamonds are functionalized with anchor molecules that bind hydrophilic cyclodextrin molecules to confer hydrophilicity on the diamond. In some embodiments, the diamonds resist dirt and grime build-up.

A device comprising: a substrate; a first coating deposited on the substrate; an intermediate coating deposited on the first coating, wherein the first coating is interposed between the substrate and the intermediate coating; and a second coating deposited on the intermediate coating, wherein the intermediate coating is interposed between the first coating and the second coating, and the second coating is outermost and black. The substrate, the first coating, the intermediate coating and the second coating define at least one of a jewelry item and a component of a jewelry item.

A method for fabricating a composite timepiece or jewellery component: a base is made in a substrate with an apparent surface remaining visible; each visible apparent surface is mirror polished; each polished apparent surface is coated with a first transparent or coloured semi-transparent layer of a first material in a dry process, or PVD or CVD or ALD process, or lacquering or zapon varnish process; a decorative element is affixed and bonded to an external surface of the first layer; the first layer and each decorative element is coated with a second layer of a transparent treatment material in a dry process, or PVD or CVD or ALD process, or lacquering or zapon varnish process.

A decorative composite body includes a glass body and a plastic partly enclosing the glass body, wherein part of the surface of the glass body is arranged on the outside of the decorative composite body, wherein at least two adjacent glass and plastic areas arranged on the outside of the composite body are ground in the composite state, wherein areas of the glass body adjacent to the plastic are at least partly mirrored.

Multicolored flexible wearables include a first portion having a first flexible polymer forming a toroid and including colorant(s), an exposed first outer surface, an exposed second outer surface, and a recess in the first outer surface not reaching the second outer surface. A second portion formed of a second flexible polymer fills a majority of the recess and includes colorant(s). The first and second flexible polymers have different colors and are permanently bonded together. Precious material particles may be disposed within the first and/or second flexible polymers. One or more of the colorants may have a color matching a color of the precious material particles. One method of bonding the portions includes depositing a liquid second portion into the recess and then curing it. Another method includes depositing a solid second portion into the recess and then curing a liquid layer of polymer between the first portion and second portion.

The embodiments herein disclose hypoallergenic, metal surface sealant clear aerosol composition to be used on metals (specifically jewelry) to prevent skin allergies and the process of tarnishing of metal. The method of synthesizing hypoallergenic metal surface sealant clear aerosol composition comprises the following steps. The paraloid-B-48 material (10.59 wt %) is added to ethyl acetate (31.77 wt %) slowly under constant agitation. The mixture comprising paraloid-B-48 material and ethyl acetate is agitated till no lumps are present. The butyl acetate (8.47 wt %), TAXIB Plasticizer (0.70 wt %), propylene glycol monomethyl ether (PM) acetate (19.77 wt %), ethyl acetate (28.24 wt %), Chemia #46210 Lavandin (0.42 wt %) and dimethyl ether to the mixture comprising paraloid-B-48 material and ethyl acetate are added to the mixture comprising paraloid B-48 material and ethyl acetate to obtain a composition. The composition is blended at a predetermined speed to uniformly mix the components.