Mynt AuctionsNew York, NY Yosemite AuctionsSan Jose, CA S.Y.EL Diamonds LTDRamat Gan, Israel S.Y.EL Diamonds LTDRamat Gan, Israel Kraft Auction ServiceEvansville, IN Admirable CollectionsSouth El Monte, CA Gorny & Mosch GmbHMunich, Bavaria 5150 AuctionsGreeley , CO Williamson Auction GalleryHollywood, FL Mynt AuctionsNew York, NY COAUCTION Lake Bluff , IL Weatherham Estate TreasuresCobourg, ON Sphere Auctions LLCSun Prarie, WI ART 4 AUCTIONFleetwood, LANCS Hardt Auctions GmbHRadevormwald, NORTH RHINE WESTPHALEN Mynt AuctionsNew York, NY Vogt Auction TexasSan Antonio, TX Gorny & Mosch GmbHMunich, Bavaria S.Y.EL Diamonds LTDRamat Gan, Israel Taylor & HarrisWILMINGTON, CA HIGH END GEMS & JEWELS LTDManchester, England