Antique Art Deco 18K White Gold Diamond Sapphire Dinner Ring. This unique piece features numerous natural sapphires with a total weight of 1.68 carats and numerous brilliant round diamonds totaling 0.46 carats. The top of the ring measures 3/4 of an inch across. The ring is a size 6.25. Sizing is available for an additional fee. It weighs 4.9 grams.