Diamond miner Alrosa has held two successful auctions of larger diamonds, which deputy CEO Evgeny Agureev said on Monday confirmed the demand for high-quality rough diamonds. At the Israel auction, total proceeds of $13.3-million “significantly exceeded” the reserve price, Agureev said, reporting that the company sold 100 rough diamonds with a total weight of 1 860 carats to 31 participants from Israel, United Arab Emirates (UAE) and Belgium.