A Stunning Antique Sapphire and Diamond Wedding Ring, 18K White Gold, Vintage Art Deco - Retro Period. This gorgeous estate ring holds a deep blue sapphire at its center measuring about 5 x 5.5mm. It is joined by sixteen (16) sparkling antique single cut diamonds. The setting is a wonderful Retro Art Deco design and is composed of 18K white gold. Overall the ring measures about 7/16 inch long by about 11/16 inch wide from side to side. Ring Size: about 5 1/2 (could be resized by your jeweler or ask me about using mine before shipping). This ring is estimated to date from the later Art Deco period to Mid-Century Deco period. The ring was acquired through an estate collection and is in lovely vintage condition.