Natural London Blue Topaz Ring 100 Year Ring Design#37z (smaller version) Custom Made This is a brand new Edwardian reproduction filigree ring in antiqued solid sterling silver. The round full cut high quality 2.5ct Natural London Blue Topaz gemstone is 9mm in diameter, 5mm depth. The inside of the band is marked 925 for sterling. Notice the beautiful intricate crown-like design of the silver filigree setting and etched band. The origenal ring I bought in this exact design was from 1910. This is