text: Pair of Tanzanite and Diamond Earrings, Tiffany & Co. Each earring set with two round tanzanites and a line of round diamonds, supporting two tanzanite drops capped by round diamonds, signed T & Co Estimate 18,000 — 22,000 USD Tanzanite and Diamond Ring, Tiffany & Co. Set with a cushion-cut tanzanite weighing 6.65 carats, accented by bullet-shaped and round diamonds, size 6, signed Tiffany & Co., numbered 23981424. With signed box. Estimate 5,000 — 7,000 USD