18K 5.99 TANZANITE & DIAMOND RING: Beautiful 4.49 CT round mixed cut tanzanite is set in 18K yellow gold in a halo of 18 round brilliant cut diamonds that approximate 1.50 CTW. Tanzanite is VVS in clarity; diamonds are VS-SI in clarity and G-H in color. Size 5. Total weight 7.9 grams. Sold with current Florida Diamond Appraisers GIA graduates appraisal for $10,250.