![]() ![]() The primary source of blue diamonds is the Cullinan mine in South Africa, majority-owned by Petra Diamonds. Stones in private collections or on display in museums, usually, are by themselves, letting their beauty of the stone speak for itself. Older stones have passed through many hands, even at times being incorporated into family jewels of different royal families. Another variation in the designs the diamonds may take is whether or not they’ve been incorporated into jewelry, such as the Blue Heart which at one point was the center stone of a ring. Many, such as the Imperial Blue and the Winston Blue, are pear-shaped however, some like the Hope Diamond are oval. ![]() The Natural Color Diamond Association recently reported that prices for natural blue diamonds have gradually and consistently increased 12-17% every year over the past decade, regardless of the hue.Īs far as designs go, the shapes the diamonds take can vary. But don’t despair! It is possible to get lesser type blue diamonds for a relatively lower price, and though they’re not the truest blue of a fancy vivid, they are still beautiful stones! And lucky for you they won’t hold nearly the jaw-dropping price tag that comes with a flawless Fancy Vivid.īlue diamonds have been a remarkable investment for collectors over the years. Unless you happen to have millions of dollars lying around, chances are you won’t be able to purchase your own vivid blue. The sales themselves generated a flurry of media attention around the globe and much public discussion, which has further energized the market for these incredibly beautiful and coveted gemstones. In fact, two high-profile blue diamonds have recently been sold at auction. As a result, we are now seeing diamonds sold at public auctions after being held untraded for many years. The escalation of price for blue diamonds over the last several decades has motivated owners to seek sale opportunities. Some Type Ia blue stones have been found, but these stones are often a greyish blue, or sometimes a pale greenish hue. Less than one-tenth of a percent of all fancy colored diamonds are Type IIb blues. Most blue diamonds are Type IIb, meaning they have no nitrogen impurities and there fore show a pure blue color without any secondary yellowing influence. They are second in rarity only to red diamonds, of which there are only around 100 known recorded stones in the world. Fancy Vivid stones are described as medium to dark in tone and strong to very strong in color saturation. Of this tiny fraction, only about 1% are classified as Fancy Vivid, helping to explain the Oppenheimer’s almost unfathomable price tag when it recently sold at auction. So how rare is “rare”? Well, blue diamonds comprise only around 0.0001% of the world’s diamond supply. Boron also is also present in higher quantities closer to the surface of the Earth whereas diamonds are formed deep in the Earth’s mantle where boron is exceedingly rare to find. On Earth, boron is much less abundant than elements like nitrogen, which is what’s responsible for the yellow hue in other diamonds. ![]() What Is a Blue Diamond?īlue diamonds are created by the presence of boron, a metalloid chemical element that introduces itself to the crystal lattice structure during the diamond’s growth. They are so rare that according to the Natural Color Diamond Association, there is only one natural blue diamond on the market for every 100 Picasso paintings up at auction. Because of their beautiful color and scarcity, they’ve become a marvel at auction and can come with some pretty heavy price tags. Blue diamonds are incredibly rare stones, and each is unique in terms of hue, clarity, carat weight and value.
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