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  2. Carat (mass) - Wikipedia

    en.wikipedia.org/wiki/Carat_(mass)

    The carat (ct) is a unit of mass equal to 200 mg (0.00705 oz; 0.00643 ozt), which is used for measuring gemstones and pearls. The current definition, sometimes known as the metric carat , was adopted in 1907 at the Fourth General Conference on Weights and Measures , [ 1 ] [ 2 ] and soon afterwards in many countries around the world.

  3. 18 Most Expensive Gemstones in the World - AOL

    www.aol.com/finance/18-most-expensive-gemstones...

    A pure, 1-carat diamond can easily fetch a price in the six digits per gram. Prices can vary dramatically based on color, cut and other factors. Rob Lavinsky / Wikimedia Commons CC-BY-SA 3

  4. Move over diamonds, these little-known gemstones are ... - AOL

    www.aol.com/move-over-diamonds-little-known...

    Lily Gabriella's "Memphis Deco Pin," is crafted in 18-carat rose gold and platinum and features a 7.34 carat grey spinel cushion, princess cut pink sapphires and custom cut lapis lazuli (price on ...

  5. Diamonds as an investment - Wikipedia

    en.wikipedia.org/wiki/Diamonds_as_an_investment

    The price matrix for brilliant cuts alone exceeds 1,400 entries, and even this is achieved only by grouping some grades together. There are considerable price shifts near the edges of the size bands, so a 0.49 carats (98 mg) stone may list at $5,500 per carat = $2,695, while a 0.50 carats (100 mg) stone of similar quality lists at $7,500 per ...

  6. Three Gemstones - Wikipedia

    en.wikipedia.org/wiki/Three_Gemstones

    Largest gemstone carat weight could be from 3,000 to 6,000 carats, at that time and probably still now one of the largest ruby/sapphire found. Since it is so large and it was owned by Mughal Emperors, later to other emperors and millionaires, it is believed that biggest gemstone current value could be 35 - 60 million USD.

  7. How to Spot The Best Vintage Jewelry in Thrift Stores ... - AOL

    www.aol.com/spot-best-vintage-jewelry-thrift...

    For example, 10k, 14k, and 18k mean 10-carat, 14-carat, and 18-carat gold, and 925 indicates sterling silver. ... They can help verify your purchases by identifying gemstones and metals, Martinez ...

  8. Hope Diamond - Wikipedia

    en.wikipedia.org/wiki/Hope_Diamond

    The tenuous deal involved wrangling among attorneys for both Cartier and the McLeans, but finally, in 1911, the couple bought the gem for over $300,000 (over $9.8 million today), [17] although there are differing estimates of the sales price at $150,000 and $180,000. An alternative scenario is that the McLeans may have fabricated concern about ...

  9. Blue Moon of Josephine - Wikipedia

    en.wikipedia.org/wiki/Blue_Moon_of_Josephine

    Estimated value US $ 48.4 million The Blue Moon of Josephine is a 12.03 carats (2.406 g) blue diamond , described as flawless by experts, that was discovered in South Africa in January 2014 and was sold at a Sotheby's auction in Geneva in November 2015 at a record-setting price of $48.4 million (43.2 million Swiss francs plus fees). [ 1 ]

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