Christopher Michael Designed Ring With 1.31 Carat Oval TanzaniteBlue violet vivid color oval tanzanite. Weight may vary. Priced in 14 kt. This is one of our more popular styles. Setting is highly protective of the tanzanite and the diamonds. This custom piece is made to order, please allow one week for production. You can choose a tanzanite from our gemstone section and we can make a ring to fit. Best with oval round or antique cushions under 3 carats. Price varies by stone. Call for price.