BonhamsLondon, UNITED KINGDOM ThousandPlanetSathorn, Bangkok ThousandPlanetSathorn, Bangkok Central Mass AuctionsWorcester, MA Artemis Fine ArtsLouisville, CO Diamond DepotNew York, NY Allamoda VintageStauton, VA Allamoda VintageStauton, VA Allamoda VintageStauton, VA EB Autographs & CollectiblesCranston, RI HIGH END GEMS & JEWELS LTDManchester, England HIGH END GEMS & JEWELS LTDManchester, England Diamond DepotNew York, NY Yardley AntiquesPennsburg, PA Yardley AntiquesPennsburg, PA BonhamsLondon, UNITED KINGDOM Hughes AuctionsSunland, CA