14K white gold opal, tanzanite and diamond filigree ring. This beautiful piece features one oval opal measuring 8 mm by 6 mm, surrounded by 6 oval tanzanites and 6 brilliant round diamonds. All gemstones are natural. The top of the ring measures 9/16 of an inch long by 1/2 of an inch wide. It is a size 7. Sizing is available. The ring weighs 4.3 grams.