This is a stunning 14k gold ring. It has a 21mm teal green spinel set in it. I have no idea if this is a synthetic or natural stone. It does fluoresce a brilliant uranium green under a UV light. This weigh 14.6 grams. The carat weight for the stone is 34 carats (approximately- I had trouble finding a good weight chart considering the size). This is a size 7-7.25. Please look at all of the pictures and check out my other auctions.