You are viewing a Retro era princess dome style ring made of 18K yellow gold. The ring measures 16mm by 16mm or just over 1/2" by 1/2". It is set with numerous blue Sapphires weighing around 1.50 carats in total. The ring is marked 18K. It is a size 6 and can be re-sized. The ring weighs 5.1 grams.