https://www.diamondworld.net/news/christies-magnificent-jewels-sale-achieves-497-million https://media.assettype.com/diamondworld/2026-06-10/t55idv3o/Christies.jpg diamondworld en 2026-06-10T07:14:48.985Z Christie’s Magnificent Jewels Sale Achieves $49.7 Million Christie’s, Magnificent Jewels, auction results, blue diamonds, coloured gemstones, sapphire jewellery, luxury auctions, jewellery collections, diamond market, New York auction