MAGNIFICENT 28.03CT TANZANITE & DIAMOND RING IN PLATINUM: 165 diamonds perfectly frame this oval mixed cut Tanzanite that is GIA certified #6173679188. The tanzanite is bluish-violet and is VVS in clarity. Size 7.5. Mounting weight is approx 12.3 grams. Sold with current Florida Diamond Appraisers GIA graduates appraisal $47,500. Est. $20000/47500**