Unique Deco 14K Yellow Gold Diamond Tourmaline Opal Cocktail Ring Band. This unique piece features 5 hand carved opals, 7 brilliant round diamonds, weighing .22 carats, and one round tourmaline measuring 4mm in diameter. The top of the ring measures 1/2 of an inch wide at its widest point. The ring is size 6 and sizing is available. It weighs 8.1 grams.