Boucheron, Chopard and Bulgari stole the attention on the 2025 Oscars ... Deco emerald and diamond swirl cufflinks in platinum and gold, and a Kwiat Ashoka diamond and platinum snake ring.

A 28.18-carat square emerald-cut Kashmir sapphire ... The untreated gem on a ring is framed by 32 tapered baguette diamonds with a mounting by Oscar Heyman & Brothers. It is described by the ...

a purple sapphire ring, a pair of Ceylon sapphire and diamond earrings, and a pair of two-tone aquamarine and spinel earrings. For the unversed, Oscar Heyman launched his eponymous label in 1912 ...