The blue color of this simulated blue topaz is quite striking and the camera doesn't quite capture its true color, which is a little more aqua. It is between a London blue and a Swiss blue. This particular stone measures 16mm x 12mm and is set in solid sterling silver, is stamped 925, and weighs 15.9 grams on the scale. I love the scorpion design on both sides of the stone. It was totally hand crafted in India and has been sized to an 8.5. At this price, it will make some man very happy!