This is a lovely and unusual ring. The mounting is stamped 14K. The metal is white gold. There is pretty filigree work on the top of the mounting. The Diamonds are irradiated Blue Diamonds. These are Diamonds that have been irradiated to give them this bright blue color. I am not a gemologist so I don't know the weight of the Diamonds, but each measures between 3-4mm round. Ring size is 5. Weight is 4.2 grms. Condition is excellent. I would date this fine ring at c 2000.