ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,702,203, issued on Aug. 11, was assigned to CHOPARD TECHNOLOGIES SA (Fleurier, Switzerland).

"Article of jewelry" was invented by Francisco Dias (Saint-Sulpice, Switzerland) and Sergio Dos Santos (Fleurier, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "An article of jewelry is proposed, comprising at least one transparent wall forming a housing arranged to receive at least one precious or semi-precious stone immersed and movable in a substantially transparent liquid in the housing, and at least one part movable in the liquid and having the same refractive index as the liquid, the movable part immersed in the liquid being substantially optic...