History

It was founded in London

London

London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

 by Laurence Graff in the 1960s

1960s

The 1960s was the decade that started on January 1, 1960, and ended on December 31, 1969. It was the seventh decade of the 20th century.The 1960s term also refers to an era more often called The Sixties, denoting the complex of inter-related cultural and political trends across the globe...

 and now has worldwide operations which range from cutting the raw stones and manufacture of jewelry to the final retailing from their 26 boutiques. They specialize in stones of exceptional quality, and are said to have handled more important gems than any other dealer in the world.
The company is expanding its presence in East Asia as China emerges with growing economic wealth.

Named diamonds

The Paragon is a 7-sided diamond of 137.82 carats (27.564 g), cut and owned by Graff Diamonds. It was worn as part of "millennium" necklace of round, pink, blue and yellow diamonds by Naomi Campbell

Naomi Campbell

Naomi Campbell is a British model. Scouted at the age of 15, she established herself among the top three most recognisable and in-demand models of the late 1980s and early 1990s, and she was one of six models of her generation declared "supermodels" by the fashion world...

 in 1999. Graff bought the uncut 603 carats (120.6 g) Lesotho Promise for $12.4 million in 2006. The Promise was cut by a team of 35 using computer-controlled lasers into 26 D-flawless diamonds totaling 224 carats (44.8 g), the highest yield from a single stone. From the same mine as the Lesotho Promise, Letseng diamond mine

Letseng diamond mine

The Letseng diamond mine, found in the landlocked Southern African kingdom of Lesotho, is owned by Gem Diamonds, Ltd. and the government of Lesotho, and at an elevation of 3,100 m it is the world's highest diamond mine.- Production :...

operated by Gem Diamonds, they bought the 493 carats (98.6 g) Letseng Legacy. Graff also cut the 100 carats (20 g) Star of America, and the 40 carats (8 g) Sun King.