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/ Home / Editorial / Passion Investments / Watches & Jewelry /
Passion Investments: Gems & Jewelry
A Dazzling Palette
Catherine Curan
01/01/2008

Jean Mahie never cared much for gemstones until she set eyes on a box of colored diamonds two decades ago. Mahie, a jewelry designer and a member of France’s Mazard fashion clan, says the epiphany came when she was visiting Neiman Marcus in Dallas to meet with jewelry department head Dudley Ramsden about her 22-karat gold designs, which the retailer has long sold on an exclusive basis. Ramsden showed her something special: a collection of 50 colored diamonds that the store was offering for sale on behalf of a private collector. The gemstones were only about a carat each—so small that they would scarcely have rated a second glance had they been ordinary white diamonds. Yet Mahie, also a watercolor artist, saw a dazzling palette in the rainbow of 50 hues. "I will never forget that box," she says.

THE AURORA Collection features almost 300 diamonds in a vast range of brilliant hues. (Photograph by The Aurora Collection (of natural color diamonds), Natural History Museum London, R. Weldon.) 

Mahie’s father-in-law, who made a fortune from owning a chain of maternity stores and began working with Mahie on luxury jewelry in 1969, tried to buy the stones, but could not secure a deal with the collector. So Ramsden, the person responsible for getting Mahie hooked, referred her to New York diamond consultant Alan Bronstein as a reputable alternative source.

Even a noncollector might be aware of Bronstein’s Aurora Collection of 296 colored gems, named after the aurora borealis. He exhibited the diamonds at the American Museum of Natural History from 1989 to 2005 and now houses them at London’s Natural History Museum. Bronstein has been chasing colored—also known as "fancy"—diamonds for 25 years. He had his own moment of revelation at the sight of a 5-carat diamond from Belgium in canary yellow. He says it was like seeing a rainbow for the first time. Yellow diamonds are the most abundant colored diamonds, but the richness of a true canary stone, as bright as the bird’s feathers, set him on a quest to capture as many other intoxicating colors as he could, using a combination of his own funds, outside financing and the backing of his business partner, Harry Rodman.

Diamonds in various hues have enthralled the elite ever since Louis XIV took possession of a 112-carat, dark-blue stone from India in 1668; it later became the legendary Hope diamond. Only in the last decade or so have colored diamonds developed a serious following among collectors, however. In addition to Bronstein’s museum loans, massive marketing efforts by Argyle and DeBeers and a dernier cri among celebrities have turned these stones from a curiosity for connoisseurs into a coveted high-fashion item. When Mahie started wearing rings and bracelets of her own design with colored diamonds, people often mistook them for semiprecious stones, judging her red diamond to be a poor-quality ruby.

A PINK diamond from Australia’s Argyle mine. (Photograph by Rio Tinto Diamonds.)

Such naiveté is much less likely today. The Harry Winston 6.1-carat pink-diamond engagement ring that Ben Affleck gave Jennifer Lopez in 2002 helped create a trend that outlasted the couple’s two-year engagement. That same year, when Halle Berry won the Best Actress Oscar, an astute observer would have noticed her pinky ring with the Pumpkin diamond, a 5.54-carat, pure orange diamond (an extremely rare color) on loan from Harry Winston. Luciano Pavarotti succumbed to their allure and splurged on a $500,000 radiant-cut pink diamond from Calleija Jewelers in Australia for his wife during his farewell tour there in 2005.

Color Me Mine
Mahie herself now owns some 30 colored diamonds, which she has set in rings or bracelets. "I never make necklaces, because I cannot see them," she says. Only once in a while, when she feels her collection has grown too large, does she sell one of her prized diamonds, and usually that is to someone she knows, so that she can see the stone again. She likes emerald cuts that allow her to see through the stone as if it were water, and gravitates toward offbeat colors, such as violet or gray, that others might overlook in favor of deep or vivid pinks.

She shows off one of her prize rings, with a purplish-red octagonal diamond from the Argyle mine in Western Australia. The stone is only half a carat, but red diamonds are the rarest of the rare, and like most, this one cost six figures. It has an open setting so light can shine through it. Mahie says she made the ring five minutes after acquiring the stone.
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