Gorgeous 18K Yellow Gold Champagne Diamond Citrine Ring. This gorgeous piece features 12 brilliant round diamonds, weighing .18 carats, numerous round champagne diamonds, totaling .57 carats and one customm cut citrine. The top of the ring measures 1/2 of an inch wide at its widest point. The ring is size 6.5 and sizing is available. It weighs 6.4 grams.