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  2. Graff Pink - Wikipedia

    en.wikipedia.org/wiki/Graff_Pink

    The Graff Pink is a rare 24.78 carat pink diamond, once owned by American celebrity jeweller Harry Winston. The diamond, mounted in a ring, was sold by Sotheby's auctioneers in Geneva , Switzerland on 16 November 2010.

  3. Spinel of the Great Imperial Crown - Wikipedia

    en.wikipedia.org/wiki/Spinel_of_the_Great...

    In 1838, in the inventory of crown items, the stone under the cross was called a “large ruby”, and in the inventory of 1865 it was already listed as “an irregularly shaped spinel ruby, worth 100,000 rubles”. [15] Since 1967, the crown, and along with it the historical spinel, has been an exhibit of the Diamond Fund.

  4. Category:Spinel group - Wikipedia

    en.wikipedia.org/wiki/Category:Spinel_group

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  5. Pink diamond - Wikipedia

    en.wikipedia.org/wiki/Pink_diamond

    A pink diamond called Pink Panther, the largest in the world, is the MacGuffin of the 1963 film of the same name. In 2002, when Ben Affleck proposed to Jennifer Lopez with a 6.1-carat pink diamond engagement ring, it catapulted pink diamonds into the popular mindset, triggering an immense surge in pink diamond prices that still exists today. [26]

  6. 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.

  7. Category:Individual spinels - Wikipedia

    en.wikipedia.org/wiki/Category:Individual_spinels

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  8. Golconda diamonds - Wikipedia

    en.wikipedia.org/wiki/Golconda_diamonds

    The pink, cushion-cut, 34.65-carat Princie Diamond used to be part of the Jewels of the Nizams of Hyderabad; it was auctioned in 2013 by Christie's and sold for US$ 39.3 million, which is the highest-recorded auction price for a Golconda diamond and a world record for US$ 1.1 million per carat. [87]

  9. Category:Spinel gemstones - Wikipedia

    en.wikipedia.org/wiki/Category:Spinel_gemstones

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