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  2. Tourmaline - Wikipedia

    en.wikipedia.org/wiki/Tourmaline

    An excellent example of watermelon tourmaline jewelry is a brooch piece (1969, gold, watermelon tourmaline, diamonds) by Andrew Grima (British, b. Italy, 1921–2007), in the collection of Kimberly Klosterman and on display at the Cincinnati Art Museum. [19] Some forms of tourmaline are dichroic; they change color when viewed from different ...

  3. Elbaite - Wikipedia

    en.wikipedia.org/wiki/Elbaite

    Elbaite, a sodium, lithium, aluminium boro-silicate, with the chemical composition Na(Li 1.5 Al 1.5)Al 6 Si 6 O 18 (BO 3) 3 (OH) 4, [4] is a mineral species belonging to the six-member ring cyclosilicate tourmaline group. Elbaite forms three series, with dravite, with fluor-liddicoatite, and with schorl.

  4. Rapaport Diamond Report - Wikipedia

    en.wikipedia.org/wiki/Rapaport_Diamond_Report

    Each grid has the clarity options on the horizontal line and the color options on the vertical line. In order to calculate the price of a diamond according to the Rapaport Price List, you need to know the size, color and clarity of the diamond. The price listed based on this information is in hundreds of dollars per carat. [3]

  5. Judge rules US must return ‘cursed’ $1B emerald to Brazil ...

    www.aol.com/judge-rules-us-must-return-205130212...

    An 836-pound “cursed” emerald worth nearly $1 billion will be returned to Brazil after 15 years under lock and key in Los Angeles. The 180,000-carat Bahia Emerald was smuggled out of the South ...

  6. Elizabeth Taylor Diamond - Wikipedia

    en.wikipedia.org/wiki/Elizabeth_Taylor_Diamond

    The Elizabeth Taylor Diamond, formerly known as the Krupp Diamond, is a 33.19-carat (6.638 g) diamond that was bought by Richard Burton for his wife, Elizabeth Taylor in 1968. The diamond was one of a number of significant pieces of jewellery owned by Taylor, her collection also included the 68 carat Taylor–Burton Diamond , which was bought ...

  7. Aquamarine (gem) - Wikipedia

    en.wikipedia.org/wiki/Aquamarine_(gem)

    The word aquamarine has been used as a modifier for other minerals like aquamarine tourmaline, ... 25 carats will have a lower price per carat than smaller ones ...

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