AUCTIONS BUY NOW PRIVATE SALES SELL LOG IN PREFERRED ACCESS ABOUT DISCOVER SERVICES LANGUAGE Items in Shopping Bag: 0 Upcoming Jewelry Auctions Type: auction Treasures 7 DECEMBER 2021 | 10:30 AM GMT | LONDON PREVIEW Type: auction Magnificent Jewels 7 DECEMBER 2021 | 10:00 AM EST | NEW YORK BID Type: auction Fine Jewels 24 NOVEMBER–9 DECEMBER 2021 | 12:00 PM EST | NEW YORK BID Type: auction Every Mother Counts Charity Auction 30 NOVEMBER–10 DECEMBER 2021 | 4:00 PM EST | NEW YORK BID About Diacore A diamond in the rough is a mystery, and only the most experienced craftsmen are able to unlock its beauty to realize a perfectly polished diamond. With utmost care and creativity, Diacore’s master craftsmen produce some of the world’s most exceptional diamonds. Since its inception more than eight decades ago, Diacore has created many famous diamonds, such as the 203.04 carat De Beers Millennium Star and the Pink Star – a magnificent 59.60-carat flawless fancy vivid pink diamond. When selecting a Diacore diamond, you are assured of its provenance and quality. Every diamond passes through rigorous tests and controls combining age-old skills, imagination and cutting-edge technology. All Diacore diamonds are ethically sourced, 100% natural and certified by the GIA. Available Now VIEW ALL Stories & Videos By using this site, you agree to our updated Privacy Policy and Cookie Policy. Manage Data Preferences Close Follow Us twitter facebook instagram youtube sinaweibo SUPPORT Contact Us Locations Download the App FAQ CORPORATE Press Privacy Policy Corporate Governance Careers MORE... Security Terms & Conditions Modern Slavery Statement Do Not Sell My Personal Information (C) 2021 Sotheby's