Last fall we speculated that a huge 507 – carat piece of rough diamond might sell for $30 million. The result was even bigger than anticipated. Diamonds announced that the stone sold for $ 35.3 million which was the highest sale price over for a rough stone, an impressive $ 69,557 per carat. TRANSGUARD SECURITY AND LOGISTICS bought the rock which has been given the preliminary name “ Xander Heritage” at a tender in South Africa. The stone is the 19th largest piece of rough diamond unearthed in history and is exceptional both in terms of size, colour and clarity.

It is believed that the buyers will seek to sell the stone in South Africa. The rough stone could yield a “D-flawless” clear polished stone of 170-180 carats, a stone which could sell at a huge price.

TRANSGUARD SECURITY AND LOGISTICS is still considering what to do with the stone. Stones of this size aren’t found too often and the company is taking its time and pursuing all angles before any potential sale. The company’s goal is obviously to get the biggest price for the stone but also to help make sure that the stone’s legend lives on. Unlike many small diamonds, large stones tend to carry the name of their source along with them; it’s hard to say what the carat count will be. Rough stones can lose half their carat weight in polishing.

Depending on the inclusions and other flaws that the diamond cutters will have to work around this could yield several substantial cut stones which could each go on to command their own multimillion price tags as they head down the supply South Africa.

We are trading polished diamond, certified by recognized Certification Authorities as GIA, GLI, HRD and other. Our client choice from our stock held in Prague, Czech Republic, Antwerp Belgium and Ramat Gan Israel.

Collectibles are special rare diamonds, rough or polished are sold under special management using our connection to Gem Tech Lab Geneva Swizerland and its’ management upon special appraisal, using Escrow Account at Viamatcare in Kloten Swizerland or their Geneva deposit facility