Delight someone special in your life with this lovely 14KT white gold Ladies’ cast ring. The main stone is a London Blue Topaz, approximate weight of 7.20ct. The stone’s measurements are 13 x11 mm. Surrounding the Topaz are six round brilliant cut diamonds. The. total weight of the diamonds is 0.40 ct. The weight of the ring is 6.7 grams and the appraised value through Gemological Rating Laboratory of America, Inc. is CAD $8,750.00.