The International Institute of Diamond Valuation (IIDV) specializes in the valuation and purchase of diamond jewelry. We are part of the De Beers Group of Companies, the world’s leading diamond company. By applying industry-leading technologies to the valuation process, we can help you to receive the most attractive price for your diamond jewelry. You can sell your diamond jewelry directly to us on our website or to one of our approved partner jewelers. We are willing to buy any jewelry piece as long as it contains at least one natural diamond – no matter how small. Our services are available for all types of diamond jewelry such as rings, earrings, necklaces and bracelets. Our laboratory is located in the heart of New York’s Diamond District and is staffed by a team of expert gemologists.