18K yellow gold and platinum ruballite and diamond ring. This magnificent piece features one natural oval ruballite, measuring 18 mm by 14 mm and weighing 14 carats, 4 brilliant round diamonds. The total weight of the diamonds is .08 of a carat. The top of the ring measures 7/8 of an inch long by 7/8 of an inch wide. It is a size 7. Sizing is available. It weighs 13.1 grams.