0.74-0.97 Cts of 7x5 mm AAA Oval Tanzanite ( 1 pc ) Loose Gemstone The loose oval Tanzanite is the finest AAA quality violet colored gem measuring 7x5 mm. Tanzanite is a purple-blue colored gem found in Tanzania, it resembles the more expensive Blue Sapphire. Tanzanite is the December Birthstone. Build your own work of art jewelry with this gemstone. 30 Day No questions asked Return Policy Free-Shipping within US Loose Tanzanite All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.