A Sightholder is a company on the De Beers Global Sightholder Sales's (DBGSS) list of authorized bulk purchasers of rough diamonds. DBGSS is controlled by the De Beers Group, the single largest producer and purveyor of rough diamonds in the world. DBGSS was previously known as DTC (Diamond Trading Company). In May 2006, DTC released a list of the 93 sightholders on its website.
The DTC Sightholder list was further reduced to 79 companies worldwide in December 2007. The list of selected companies for the 2008-2011 contract period was published in April 2008.
The DTC list of sightholders for 2013 is as follows;
A. Dalumi DiamondsAlmod Diamonds Ltd.AMC NVAnkit Gems Private LimitedArjav Diamonds NVAsian Star Company LimitedBhavani GemsBlue Star Diamonds Pvt. Ltd.Chow Sang Sang Jewellery Company LimitedChow Tai Fook Jewellery Co.Ltd.Crossworks Manufacturing Ltd.Dali Diamond Co.DDM Arabov GroupDe Toledo Diamonds LtdDharmanandan Diamonds Pvt LtdDiacor International Ltd.DiancoDiarough NVDilipkumar V. LakhiDigico Holdings Ltd.Dimexon International Holding BVE.F.D. Ltd.Eloquence Corporation dba MWI ELOQUENCEEurostar Diamonds International S.A.ExelcoEZ DiamondsFruchter Gad Diamonds Ltd.Finestar Jewellery & Diamonds Pvt. Ltd.Gitanjali Gems Ltd.Gold Star Diamond Private LimitedHard Stone Processing (Pty) LtdHari Krishna Exports Pvt. Ltd.Hasenfeld-Stein Inc.H DipakHenri PolakHvk International Private LimitedIGC Group LTDJasaniJewelex India Private LimitedJulius Klein Diamonds LLCK Girdharlal International LimitedKARP Impex Ltd.KGK Diamonds (I) Private LimitedKiran Gems Private LimitedKP Sanghvi & SonsKristall Production Corporation OAOL. M. Van Moppes & Sons LtdLaurelton DiamondsLaxmi Diamond Pvt LtdLazare Kaplan International Inc.Leo Schachter International Ltd.Lieber & Solow Ltd.M Suresh Company Private LimitedMahendra Brothers Exports Private LimitedMohit Diamonds Private LimitedMOTIGANZ Diamond GroupNiru Diamonds Israel (1987) Ltd.Pluczenik Diamond Company NVPremier Gem (Group)Richold SARockstarRosy Blue (India) Pvt. Ltd.Rosy Blue (NV) Business AllianceS. Vinodkumar Diamonds Pvt. LtdSafdicoSahar Atid Diamonds Ltd.Schachter and Namdar (Pty) LtdShairu GemsSheetal Manufacturing Company PVT LTDShree Ramkrishna Exports Private LimitedShrenuj & Company LimitedStar Diamond Group (SDG) BVStuller, Inc.Suashish Diamonds Ltd.Taché Company NVTasaki & Co Ltd.Trau Bros NVVenus JewelVijay Diamond FZEWing Hang Company LimitedYerushalmi Bros. Diamonds LtdYoshfe Diamonds International Ltd.Yosi Glick Diamonds (2003) Ltd.