14k yellow gold tanzanite and diamond ring. The ring features 1 cushion cut tanzanite, that measures 12x12.9mm. Based on the measurements, the stone weighs approximately 9.00 carats. 12 round diamonds flank the center stone, they weigh approximately 1.20 carats total. The ring is a size 6 ¼ and weighs 5.0 dwts.