Gorgeous 14K White Gold Diamond Cabochon Amethyst Sapphire Ring. This gorgeous piece features 28 brilliant round diamonds, weighing .50 carats, numerous round pink sapphires and one cabochon amethyst, totaling 1.5 carats. The top of the ring measures 3/4 of an inch wide. The ring is size 7 and sizing is available. It weighs 11.2 grams.