14K yellow gold opal, garnet and diamond filigree ring. This beautiful piece features one?ÿoval opal measuring 8 mm by 10 mm, surrounded by 18 round rhodolite garnets and 12 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 3.7 grams.