The most important gemstones from Graff – in pictures

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  The Graff Venus was deemed the largest D Flawless heart-shaped diamond in the world when it was unveiled in 2016. It took craftsmen 18 months to cut and polish the Type IIA diamond from a 357-carat, rough diamond that was discovered in 2015 at the Letseng Mine in Lesotho. The final stone weighs in at 118.78 carats. Courtesy Graff

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  Founder Laurence Graff bought the bewitching Wittelsbach diamond at Christie’s in December 2008 for a little more than Dh60 million, the highest price ever paid for a gemstone at an auction at the time. He had his master cutters give the stone a modern polish with additional facets to highlight its blue colour, which reduced its weight by about four carats to 31.06, and it was renamed the Wittelsbach-Graff diamond. Courtesy Graff

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  Natural pink diamonds are the rarest gems in the world. The Graff Pink weighs 23.88 carats, and has a rectangular step-cut and delicate round corners. Between 2010 and 2017, the stone held the world auction record for a pink diamond, at a price of Dh169 million. Courtesy Graff

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  The Graff Ruby comes from the Mogok Valley in Burma, an area known for producing stones that stand out for their size, colour and clarity. The cushion-shaped stone weighs 8.62 carats, and Graff first bought it at auction in 2006 and then again in 2014. Courtesy Graff

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  Laurence Graff said about the 102.79-carat, round, D colour, internally flawless Graff Constellation diamond: “When you look into it, you see all the stars in the sky.” Courtesy Graff

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  At 118.08 carats, the Delaire Sunrise is the largest square, emerald-cut, Fancy Vivid Yellow diamond in the world. Courtesy Graff

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  Completely flawless, and perfect in cut and colour, the rough stones from which the Graff Sweethearts were crafted were discovered within the same mine. The final cut and polished, heart-shaped diamonds weigh in at 51.53 carats and 50.76 carats, and they were set as a pair of earrings in 2013. Courtesy Graff