PLATINUM 35CT SWISS BLUE TOPAZ & DIAMOND NECKLACE: A single 35.10 CT, VVS checker board mixed cut topaz is featured in this handmade ''Y'' style platinum necklace. 82 diamonds are set into the necklace, the drop and they encircle the topaz. Diamonds range in clarity VS2-SI, range H-I-J in color and weigh approx 2.59 CTW. Weight 21.9 grams. Sold with current Atlanta Gemological GIA graduate's appraisal for $12,650. Est. $7000/13000**