Stunning 14K Yellow Gold Cabochon Sapphire Diamond Pendant Necklace. This unique piece features natural oval cabochon sapphire measuring 8 mm by 6 mm and 21 brilliant round diamonds. The total weight of the diamonds is .35 carats. The piece measures 7/8 of an inch long by 1/2 of an inch wide. The inner dimension of a bail is .25 of an inch. The pendant weighs 5.9 grams.