This is a lovely rose cut diamond (8 rose cuts) and tourmaline (2) ring. It is crafted from 18 ct yellow gold. It is a size 6 and 3/4, but could easily be sized by someone used to working with antique jewelry. It is circa 1890, and it weighs 3.76 grams. The top of the ring measures 3/8 inches North to South, and about the same East to West. It is a lovely, feminine , period piece at an affordable price.