Customizable Tanzanite Diamond Gemstone Engagement Ring in 18K Solid A single stone Tanzanite ring Tanzanite Stone 39.27 Carats! in 18k WG Ring With 2.05 Cts. of VVS Tanzanite: Everything You Need To Know About Tanzanite Stone Angara CA Natural Tanzanite Ring Sterling Silver Ring 7 Stone Tanzanite Tanzanite Gemstone Ring UnderArt Gallery. A 9 carat gold ring containing a single oval cut tanzanite gemstone. Measures 8x6mm, four claw setting. Weight 2. 1grams, hallmarks for Birmingham 2012. Size R, we can resize free of charge