Stunning Estate 14K Yellow Gold Diamond Cabochon Opal Cocktail Ring. This unique piece features numerous brilliant round diamonds totaling .42 carats and natural cabochon opal weighing 2.6 carats The top of the ring measures 5/8 of an inch long by almost .50 of an inch wide. The ring weighs 5 grams. It is a size 7. Sizing is available upon request.