The MOEX Investment Diamonds Index is a financial benchmark calculated based on diamond prices in US dollars and is designed to assess the investment attractiveness of premium diamonds with a focus on Russia as a key trading region. In March 2026, values ranged from 798.93 USD to 804.71 USD with an average level of 802.15 USD. The index is based on diamonds weighing from 2.00 to 9.99 carats, colors from D to H, quality from VVS1 to VS2, round and fancy cuts. Source: Moscow Exchange https://www.moex.com/en/indices.