The ring is sterling silver and I made the two baugettes of turquoise.  The ring is a gift for a friend. This friend made the ring many years ago using the lost wax method of casting.  She is the spouse of an Air Force veteran.  Many years ago they were stationed at a base that had a lapidary shop.  She related her joy in working with gemstones and learning, among other things, silversmithing.  I hope she likes it.