Post 'Ocean Dream' blue-green diamond sells for more than $17 million at Christie's auction in Geneva – Yahoo May 13, 2026 • ‘Ocean Dream’ blue-green diamond sells for more than $17 million at Christie’s auction in Geneva YahooSee more headlines & perspectives on Google News ShareFacebookXLinkedInWhatsAppTelegramPinterestRedditEmailInteractive form removed in AMP view.Interactive form removed in AMP view. View full desktop version