Wow, this is so pretty. Center diamond is an old cut probably .25 carat. Have not weighed the stones. Sapphires may be synthetic, not tested. Large size 10 or 10 1/2 (must have been sized up). The gallery (sides) of the ring is delicate and fine. There are four tiny diamonds around the larger diamond. I will weigh this tomorrow. This is a great ring! Excellent condition.