Abstract: A piece of jewelry is provided which includes a base and at least one ornamental member. When the piece of jewelry is in an unassembled state, the ornamental member is detached from the base. The ornamental member includes a pair of elongate pins which are insertable into a pair of openings in the base and foldable to folded relation facing towards each other thereby firming fixing the ornamental member to the base to constitute an assembled piece of jewelry.

Abstract: A receptacle pin ring includes a ring band having at least one base with at least two spaced apart openings therethrough, at least one ornamental member having a pair of elongated pins extending therefrom. When the ring is in unassembled state, the ornamental members are detached from the base. The pins are spaced in corresponding relation to the openings, the pins being insertable in a respective pair of openings and being foldable when inserted through the openings to a folded relation facing toward each other.

Abstract: A dual locking ring including a first ring and second ring, such as an engagement ring and a wedding ring. The first ring includes a band and at least one protrusion extending radially therefrom. The second ring includes at least one band having a receptacle for the protrusion. The protrusion and the receptacle lockingly attach the first and second rings together. The bands of the first and second rings have substantially the same inner diameter. In this manner, an engagement ring and a wedding ring may be worn on the same finger, with each being visible and without the rings twisting, turning, or sliding away from each other.