where are blue diamonds found

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These mines include the Cullinan mine near Pretoria, South Africa, and the Argyle mine in Australia. South Africa is often considered the birthplace of diamond mining by many professionals. Similar to red diamonds, no one knows for sure how pink diamonds get their color. This new study reveals not only that type IIb diamonds are among the deepest diamonds ever found, but also that boron and maybe even water can be carried from the ocean deep into the mantle by the process of subduction. This also applies to blue diamonds and you are born to thank for the particular color. Scientists now think they’ve figured out how the boron got there. JOHANNESBURG - A South African diamond producer on Wednesday announced it had found five blue stones, considered to be among the world's rarest and most valuable, at its primary mine. Since then, numerous diamondiferous pipes and alluvial deposits have been found. They’ll be unique in the shade, with different characteristics in each one, but you can be sure they’re all eye-catching, scarce, and therefore also valuable. On Sept. 30, Gem Diamonds’ Letšeng mine discovered not only the 12 ct. blue, but an 83.9 ct. white described as “exceptional quality.” The mine’s statement did not comment on the blue stone’s quality. Famous Blue Diamonds The Okavango Blue. The inclusions also show that, at this great depth, the diamonds grew in the presence of ocean crust which was carried down to the lower mantle by the conveyor-belt-like process of subduction. It’s home to the Big Hole Diamond mine. But now, secrets of the scarcest stones in the world are coming to the surface. This mine was active from 1871 to 1914 and is believed to be the world’s largest hand-dug excavation. Blue diamonds carry considerable price tags and much of their value is attributed to the fact that they’re so rare and that many people wish they can own one. The blue diamonds – They fall into the group of second-most scarce of all diamonds. Paler stones that resemble the sky when it’s clear. This makes it the hardest conductor in existence. By mining into one of these kimberlite dikes, or kimberlite pipes, diamonds may be uncovered. For other diamond-related objects found in Minecraft, see Diamond (Disambiguation). This new study proposes a model whereby some of this boron is subducted with hydrous (water-bearing) minerals down to the lower mantle. Blue Diamonds; Percentage of Total Diamonds … Blue diamonds are among the rarest of gems. The … You can also travel to the Golconda mine in India, a place called Lesteng in Lesotho, or Zimbabwe to see where blue stones are mined. The most popular ones are vivid blues, but you’ll still pay a lot for light blue stones too. By closing this banner or using this site you agree to our revised Privacy Notice, Terms of Service and Cookie Policy. But in the mantle, where diamonds grow, the concentration of boron is extremely low. All rights reserved. Price is always determined by the 4Cs combined, but you can expect to pay around $1M/carat or more if a vivid blue stone is larger than 3ct. Cullinan mine is one of the world's most important sources of blue diamonds, according to the company. Rare blue diamond found in South Africa sold for £17m. Blue diamonds with a high carat weight such as 2 or 3 carat are even harder to come by, and thus extremely expensive. Yet their blue hue comes from boron, an element not commonly found there. Boron is an element that is strongly concentrated at Earth’s surface. As stated, not all blue diamonds are of the same hue, so you can expect various looks: Because of the different types of blues, they’re named accordingly to differentiate between them and you’ll find many descriptions on the market, such as ‘royal’ or ‘baby’. For comparison, this is approximately four times deeper than most other kinds of diamonds, which form near the base of old and thick continents at depths of about 150–200 km. They’re still novelties to own, partly because yearly so few of them are added to the diamond market: usually only 2 to 4 in a given year. By far one of the biggest producers, South Africa is our top pick for those of you wanting to know where can you find diamonds. Remarkably, the boron atoms contained in these blue gems may … –  after it was cut and polished it was recorded as 31.06ct. Stones get their color way back in the mantle, where diamonds grow, the boron content type. Are blue, making them a rarity among rarities, many impressive stones were found in the country Brazil...: this refers to exceptional purity, referring to the NCDIA a week. Stones, hues are more difficult to find in the 5-12 level.! 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