The MOEX Investment Diamonds Russian Rubles Index is a financial indicator calculated based on diamond prices in Russian rubles and serves as a tool for analyzing investments in the national currency with a focus on the Russian market. In March 2026, values ranged from 1063.89 RUB to 1148.17 RUB with an average level of 1100.07 RUB. 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.