A bijouterie and/or jewelry item, comprises a hollow male part and a hollow female part interacting with each other, in which the male part comprises: a first ornamental part, having a first inner surface and a first outer ornamental surface, a male coupling part, integral with said inner surface and having an outer coupling surface,

the female part comprises: a second ornamental part, comprising a second inner surface and a second outer ornamental surface, a female coupling part, integral with said second inner surface and comprising an inner coupling surface shaped to interact with said outer coupling surface.

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 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.

In an under component having a proximal end and a distal end, the under component comprising a cylindrical portion extending from the proximal end to the distal end; wherein the proximal end includes a rim that extends laterally from the cylindrical portion and that is flush with the proximal end; the rim extending from the cylindrical portion, wherein the rim includes a proximal edge and a distal edge. An over component having a proximal end and a distal end and a rim having a proximal edge and a distal edge, wherein the distal end of the under component extending to a position flush with a proximal edge of the rim of the over component, wherein the distal end of the over component extending to a position flush with a distal edge of the rim of the under component. A central component, wherein the central component is coupled to the over component, and the over component is coupled to the under component

In an under component having a proximal end and a distal end, the under component comprising a cylindrical portion extending from the proximal end to the distal end; wherein the proximal end includes a rim that extends laterally from the cylindrical portion and that is flush with the proximal end; the rim extending from the cylindrical portion, wherein the rim includes a proximal edge and a distal edge. An over component having a proximal end and a distal end and a rim having a proximal edge and a distal edge, wherein the distal end of the under component extending to a position flush with a proximal edge of the rim of the over component, wherein the distal end of the over component extending to a position flush with a distal edge of the rim of the under component. A central component, wherein the central component is coupled to the over component, and the over component is coupled to the under component

Provided is a jewelry ring comprising a substrate, a first coating of a metallic nitride or a metallic boride, and an external metallic coating. Also provided is a metallic article comprising a substrate comprising tungsten carbide, cobalt, tungsten, titanium, titanium carbide, zirconium, tantalum or aluminum; a first coating of a metallic nitride or a metallic boride; and an external metallic coating. A method for making a jewelry ring comprising a substrate, a first coating of a metallic nitride or a metallic boride, and an external metallic coating is additionally provided. Further provided is a method for making a metallic article comprising a substrate comprising tungsten carbide, cobalt, tungsten, titanium, titanium carbide, zirconium, tantalum or aluminum; a first coating of a metallic nitride or a metallic boride; and an external metallic coating.

Provided is a jewelry ring comprising a substrate, a first coating of a metallic nitride or a metallic boride, and an external metallic coating. Also provided is a metallic article comprising a substrate comprising tungsten carbide, cobalt, tungsten, titanium, titanium carbide, zirconium, tantalum or aluminum; a first coating of a metallic nitride or a metallic boride; and an external metallic coating. A method for making a jewelry ring comprising a substrate, a first coating of a metallic nitride or a metallic boride, and an external metallic coating is additionally provided. Further provided is a method for making a metallic article comprising a substrate comprising tungsten carbide, cobalt, tungsten, titanium, titanium carbide, zirconium, tantalum or aluminum; a first coating of a metallic nitride or a metallic boride; and an external metallic coating.

A jewelry apparatus can include a base member having a hippocrepiform configuration, the base member having a first prong and a second prong. The jewelry apparatus can include a coupling member operably configured for attachment to the base member. The coupling member can include a disk member having a first side and a second side, the first side having a first set of indicia depicting a first partial portion of a word, the second side having a second set of indicia depicting a second partial portion of the word, a first projection extending from the disk member operably configured for attachment to the first prong and a second projection extending from the disk member operably configured for attachment to the second prong. The first projection or the second projection is configured to produce a tactile indication when inserted into or removed from the first prong or the second prong.

A ring comprising: an inner surface; an outer surface; and a central axis; the inner surface and the outer surface are connected by an upper surface and a lower surface; the central axis is orthogonal to the ring; the inner surface comprises an inner top portion, inner narrow portion, and inner bottom portion; the inner top portion of the inner surface comprises an inner top circumference; the inner narrow portion of the inner surface comprises an inner narrow circumference; the inner bottom portion of the inner surface comprises an inner bottom circumference; the inner narrow circumference is less than both the inner top circumference and the inner bottom circumference; and the inner surface is configured to matingly engage with a finger of a user such that when the ring is placed on the finger it is held substantially in place and is substantially prevented from being accidentally removed from the finger.

Disclosed is a spinnable jewelry item, including: a rotating assembly having a rotating face and a main shaft connected with the rotating face, the rotating face rotating with the main shaft as axis; a positioning assembly having a positioning face, the positioning face elastically abutting against the rotating face along the axial direction of the main shaft; a protrusion and a recess opposite the protrusion being provided on opposite surfaces of the positioning face and the rotating face; when the rotating face is rotated, the protrusion enters or exits the recess; an elastic element applying an elastic force against the positioning assembly, such that the positioning face resiliently abutting against the rotating face; a main body part having an opening structure, wherein the main shaft is rotatably connected with the bottom of the opening structure after passing through the positioning assembly and the elastic element, and the positioning assembly and the elastic element are disposed in the opening structure. the spinnable jewelry item has a structure that can be rotated to be positioned, such that various vies of the jewelry item can be well presented, thereby better satisfying a consumer's demands on versatility.