The MOEX Diamonds Russian Rubles Index is a financial instrument calculated based on diamond prices in Russian rubles and acts as an indicator for monitoring market prices in the national currency with a focus on the Russian market. In March 2026, values ranged from 748.63 RUB to 807.12 RUB with an average level of 773.65 RUB. The index is based on diamonds weighing from 0.30 to 1.99 carats, colors from D to O, quality from IF to I3, round and fancy cuts. Source: Moscow Exchange https://www.moex.com/en/indices.