1960 london uk founder laurence graff number of locations worldwide key people laurence graff chairman number of employees 500 website www.graffdiamonds.com graff diamonds is a british multinational jeweller based in london . 1 a vertically integrated company graff operations comprise the design manufacture and retail distribution of high end jewellery and watches . contents 1 history 2 sourcing 3 notable diamonds 4 the peacock brooch 5 stores 6 graffiti magazine 7 see also 8 references 9 external links history edit graff diamonds was founded in london in 1960 by laurence graff . sourcing edit graff adheres to the kimberly process never knowingly buying or trading rough diamonds from areas where it would encourage conflict or human suffering . the majority of graff diamonds are laser engraved with unique gemological institute of america tracking numbers which whilst invisible to the naked eye allow for its origin to be traced . citation needed notable diamonds edit the windsor yellows were acquired by laurence graff in 1987 in geneva during the auction of the jewels belonging to wallis simpson duchess of windsor . the duchess was often photographed wearing the windsor yellows a pair of clips of fancy yellow pear shaped diamonds of 51.01 and 40.22 carats respectively . i also bought another pair of clips the duchess had owned laurence graff explains . of course they needed re cutting to bring them to their full potential i bought all four repolished them and eventually made the windsor earrings . 2 the paragon diamond was acquired by graff in 1989 . the paragon is a 7 sided diamond of 137.82 carats 27.564 g cut 3 4 and was worn as part of millennium necklace of round pink blue and yellow diamonds by naomi campbell in 1999 . 5 the lesotho promise was acquired as a rough 603 carat 120.6 g stone for 12.4 million in 2006 . 6 the stone 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 diamond . 7 8 in july 2007 the finished stones were unveiled . the largest gem cut from the diamond was a 75 carat 15.0 g pear shaped diamond ; the smallest a 0.55 carat 110 mg round brilliant . in all twenty six stones were fashioned from the rough gem figuring as seven pear shapes four emerald cuts thirteen round brilliants and one heart shape . the finished gems total 224 carats 44.8 g . the letseng legacy diamond was unearthed from the same mine as the lesotho promise letseng diamond mine in 2008 and totalled 493cts . acquired by graff for 10.4 million they yielded 20 diamonds totaling 231.67 cts from the one rough stone . the wittelsbach graff diamond is a 31.06 carat 6.212 g fancy deep blue diamond with internally flawless clarity purchased by laurence graff in 2008 for 16.4 million . the delaire sunrise is at 118.08 carats the largest square emerald cut fancy vivid yellow diamond in the world . discovered in 2008 at an alluvial mine in south africa the 221.81 carat rough diamond . when laurence graff unveiled the finished diamond he named it the delaire sunrise . 9 the constellation is at 102.79 carats the largest round shaped d colour internally flawless diamond ever to be graded by the gemological institute of america . the graff pink was acquired by graff in november 2010 . a pink diamond with a type iia classification and modified emerald cut shape the diamond was previously held in a private collection for over 60 years . the diamond displayed 25 natural flaws . the recut 23.88 carat diamond displayed new colour clarity and internal flawlessness . 10 11 12 13 the graff sweethearts were originally two rough diamonds weighing 196 carats and 184 carats discovered at the letseng mine in lesotho . after cutting they produced a 51.53 ct d colour flawless type iia and a 50.76 ct d colour flawless type iia both heart shaped . the sultan abdul hamid ii is a 70 54 carat light yellow acquired by graff in 1981 . it has been suggested that this stone may have been cut from the ottoman i which originally belonged to suleyman the magnificent of turkey . see anna malecka the lost diamond of s leyman the magnificent jewellery history today the society of jewellery historians winter 2015 22 . the peacock brooch edit taking the form of a peacock with a display of fanned tail feathers this diamond brooch features a collection of coloured diamonds . a total of 120.81 carats of diamonds adorn the brooch which measures a little over 10 cm in height . this piece is priced at 100 million . at the heart of the brooch sits a 20.02 carat deep blue pear shape diamond . the piece also features an additional clasp to the rear allowing the blue diamond centerpiece to be removed and worn two ways . 14 15 stores edit graff has over 50 stores around the world including new york monte carlo courchevel kiev beijing and taipei . 16 graff has corporate offices in london new york geneva hong kong and tokyo . graffiti magazine edit graff s bi annual client magazine graffiti was launched in 2009 and is distributed globally to graff s clients in both english and simplified chinese . see also edit graff diamonds robbery references edit graff diamonds . graff diamonds . retrieved 25 september 2015 . the most fabulous jewels in the world meredith etherington smith 1997 murphy robert march 1 2008 in the cut wmagazine.com the paragon diamond . famousdiamonds.tripod.com . retrieved 25 september 2015 . menkes suzy 15 june 1999 . those sparkling celebrities . new york times . retrieved 2011 06 19 . sguazzin antony 9 october 2006 . graff buys lesotho promise diamond for 12.4 million . bloomberg . retrieved 2009 11 06 . robert murphy 1 march 2008 . in the cut . w magazine . retrieved 25 september 2015 . rowley emma 21 april 2013 . commodities gem diamonds carves out brighter prospects by cutting its own stones . the daily telegraph . london . the delaire sunrise . safdico.com . retrieved 25 september 2015 . world s most famous unseen diamond . bbc news . 30 january 2010 . 1 archived january 16 2012 at the wayback machine . fabrikant geraldine 18 june 2011 . laurence graff sees demand for big diamonds in china . the new york times . rare pink diamond is sold for world record 29m to british billionaire jeweller . daily mail . london . graff to unveil 120 carat diamond peacock brooch valued at 100 million . forbes.com . retrieved 2015 09 27 . independent jewelers market news small jeweler organization reports . nationaljeweler.com . retrieved 25 september 2015 . graff diamonds . graff diamonds . retrieved 25 september 2015 . external links edit official website retrieved from https en.wikipedia.org w index.php title graff diamonds & oldid 731746442 categories diamond dealersluxury brandscompanies based in londoncompanies established in the 1960shidden categories articles with wayback machine linksall articles with unsourced statementsarticles with unsourced statements from august 2013 navigation menu personal tools not logged 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