Marked 925 beautiful ring size 7

When I bought this I was told that it was white sapphire and small Czs. I have never had it tested to be sure so I will only say what I was told. I make no guarantees. The ring is stunning but I have lost weight and it now slides off of my finger. Sterling silver is tricky to have sized without stones popping out, so I’ve decided to let this beauty go to someone who can wear it