A ring with a rotation and a lock function to selectively display multiple jewels is configured to comprise a first side including a first hole; a second side positioned in an opposite side to the first side and including a second hole that is smaller than the first hole; a third side bended from the first side; a fourth side bended from the first side and positioned in an opposite side to the third side; a space formed between the first and the second side; a plurality of receivers positioned in the space and meeting with the second side;

elastic members respectively positioned in the plurality of receiver, and jewels respectively sitting on the elastic members, wherein the second side and the plurality of the receivers are rotatable in a state that the first, the third, and the fourth side are fixed.

A ring for wearing by a user includes a rigid outer annular body and a flexible inner annular body. In one embodiment, the outer annular body is a rigid material formed form a process other than injection molding, and the inner annular body is flexible and formed form an injection molded process. The outer annular body is attached to the inner annular body. The inner annular body may be machined to curve from longitudinal ends of the inner annular body to an inner surface of the inner annular body after the inner annular body is joined to the outer annular body in order to provide a comfort fit. Alternatively, the inner annular body may be molded with the comfort fit curvature. In one embodiment, the outer annular body has at least one strain relief recess in an inner surface thereof, and the inner annular body fills said strain relief recess.

A metal accessory having a non-contact communication function, includes: an integrated circuit element (IC chip) for control, capable of performing non-contact short-range wireless communication with an external terminal; a loop antenna with a predetermined length, having both ends connected respectively to both ends of the integrated circuit element for control; and a body part, which is made of a metal or precious metal material, is formed into a loop shape having a through hole formed through the center thereof, and has a slit formed by cutting a partial section of the loop. The integrated circuit element for control and the loop antenna are provided inside the body part, the loop antenna is wound several times along the loop-shaped body part, and a portion of the loop-shaped body part is completely cut by the slit.

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 includes a toroid having an inner portion. An adaptive force region is extending from the inner portion. The adaptive force region is operable to exhibit non-Hookean deformation.

A ring accessory comprises an outer loop and an elastic piece placed in the outer loop. The outer loop comprises a lateral loop and a top cover located above the lateral loop. The top cover has a hole for a ring head passing through. An inner side of the top cover at an edge of the hole comprises at least three deep recesses, and a shallow recess between every two adjacent deep recesses. A distance from the deep recess to hole center is greater than a distance from the shallow recess to the hole center. The elastic piece has recesses corresponding to the deep recesses and shallow recesses on the top cover. The elastic piece is an annulus with a wave shape, the elastic piece deep recesses are located at the bottom of the wave, and the elastic piece shallow recesses are located at the top of the wave.

A ring accessory comprises an outer loop and an elastic piece placed in the outer loop. The outer loop comprises a lateral loop and a top cover located above the lateral loop. The top cover has a hole for a ring head passing through. An inner side of the top cover at an edge of the hole comprises at least three deep recesses, and a shallow recess between every two adjacent deep recesses. A distance from the deep recess to hole center is greater than a distance from the shallow recess to the hole center. The elastic piece has recesses corresponding to the deep recesses and shallow recesses on the top cover. The elastic piece is an annulus with a wave shape, the elastic piece deep recesses are located at the bottom of the wave, and the elastic piece shallow recesses are located at the top of the wave.

A wearable device is described. The wearable device may include an antenna ground plane disposed along a first circumferential portion of the wearable device. The wearable device may also include an antenna that is disposed along the second circumferential portion and that is separated from the antenna ground plane by a spacing. An interconnect portion of the antenna, which may couple a radiator of the antenna with an input of a communication component, may be coupled with the antenna ground plane.

A jewelry apparatus comprising a base member and a coupling member operably configured for attachment to the base member. The base member having a first prong and a second prong each having a first portion having a first width and a second portion having a second width smaller than the first width. The coupling member comprising a disk member having a first and second side, the first side having a first set of indicia and the second side having a second set of indicia; 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 disk member is movably coupled to the base member and the coupling member is configured to rotate such that the indicia sets create the visual appearance of both the indicia sets.

Various pieces of jewelry and methods of manufacture and use thereof. In particular, these technologies enable a piece of jewelry with a region hosting (i) a hidden hinge and (ii) a decorative element. The decorative element includes a first wall and a second wall opposing the first wall such that the first wall and the second wall collectively define the decorative element when the hidden hinge is closed, thereby enabling a visually continuous appearance when viewed by an observer, and not collectively define the decorative element when the hidden hinge is open, thereby not enabling the visually continuous appearance when viewed by the observer. Therefore, by having the decorative element include the first wall and the second wall, the visually continuous appearance is enabled when the hidden hinge is closed.