This beautiful ring is contemporary and is signed Caviar, 925, and 750. It is fashined from sterling silver and trimmed in 18kt yellow gold. It is set with a beautiful moonstone which has a blue cast and has a moon which moves when you move the ring. The ring is a size 7 and measures 1/2 inch wide at the top. I blieve that this Caviar ring is made by the famous Lagos jewelry designer. This ring weighs 11.1 grams. Check out the matching necklace and earrings which are listed and priced seperately.