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  2. Koh-i-Noor: The History of the World's Most Infamous Diamond

    en.wikipedia.org/wiki/Koh-i-Noor:_The_History_of...

    The First Cut. The chapter describes scientific and professional examination of the Koh-i-Noor and how it was cut. There is a summary of David Brewster's critique of the diamond. Garrard & Co contracted the Dutch diamond company Mozes Coster to plan for cutting the diamond. Maudslay, Sons & Field provided an engine to grind it.

  3. Brilliant (diamond cut) - Wikipedia

    en.wikipedia.org/wiki/Brilliant_(diamond_cut)

    Generally it will need to be viewed loose under a gemscope to see the pattern very well. Although the hearts and arrows property is indicative of a top-tier cut, it does not always mean the diamond will be the most brilliant. Optimal facet placement is the key to brilliance and more important than facet patterning.

  4. Diamond cut - Wikipedia

    en.wikipedia.org/wiki/Diamond_cut

    A diamond cut is a style or design guide used when shaping a diamond for polishing such as the brilliant cut. Cut refers to shape (pear, oval), and also the symmetry, proportioning and polish of a diamond. The cut of a diamond greatly affects a diamond's brilliance—a poorly-cut diamond is less luminous.

  5. Diamonds as an investment - Wikipedia

    en.wikipedia.org/wiki/Diamonds_as_an_investment

    Diamonds, because of their hardness, are one of the few gemstones that have a recycled market. Recycled diamonds are diamonds that have been polished and set into jewelry, then removed and possibly re-cut before sale back into the diamond industry. This sector accounts for 5%–10% of market supply. [25]

  6. Jewels of Anne of Denmark - Wikipedia

    en.wikipedia.org/wiki/Jewels_of_Anne_of_Denmark

    Anne of Denmark pawned some of her most valuable diamonds in March 1615 for £3,000. The goldsmith John Spilman made record drawings of the cut of eleven stones and indicated the settings of two. He noted them as eight table diamonds set in gold enamelled black, one diamond resembling a glass window quarry, and two lozenge diamonds cut in facets.

  7. Beau Sancy - Wikipedia

    en.wikipedia.org/wiki/Beau_Sancy

    The Beau Sancy is a 34.98-carat (6.996 g) diamond originally mined in India, which is cut in a modified pear double rose-cut shape. [1] Since appearing in Europe in the 16th century, the Beau Sancy has been owned by a number of European royal houses, among them the House of Medici and the kings of England and Prussia.

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