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  2. Emerald - Wikipedia

    en.wikipedia.org/wiki/Emerald

    Emerald is a gemstone and a variety of the mineral beryl (Be 3 Al 2 ... Faceted emeralds are most commonly given an oval cut, or the signature emerald cut, a ...

  3. Cut (gems) - Wikipedia

    en.wikipedia.org/wiki/Cut_(gems)

    The diamond cut planning stage is a complex process that requires the cutter to work with unique rough stones. Very often, the location of the inclusions in a rough stone will determine the type of shape to which a diamond may be cut. For economic reasons, most diamonds are cut to retain weight instead of maximizing brilliance. [2]

  4. List of emeralds by size - Wikipedia

    en.wikipedia.org/wiki/List_of_emeralds_by_size

    The three main emerald mining areas in Colombia are Muzo, Coscuez, and Chivor. [10] Rare "trapiche" emeralds are found in Colombia, distinguished by ray-like spokes of dark impurities. Zambia is the world's second biggest producer, with Kagem mine being the world's largest emerald mine [ 11 ] responsible for 25–30% of the world's production ...

  5. Gemstone - Wikipedia

    en.wikipedia.org/wiki/Gemstone

    In modern use, the precious stones are emerald, ruby, sapphire and diamond, with all other gemstones being semi-precious. [9] This distinction reflects the rarity of the respective stones in ancient times, as well as their quality: all are translucent , with fine color in their purest forms (except for the colorless diamond), and very hard with ...

  6. List of individual gemstones - Wikipedia

    en.wikipedia.org/wiki/List_of_individual_gemstones

    Emerald of Saint Louis, [5] 51.60 carats cut; discovered in Austria, probably Habachtal, resides in the National Museum of Natural History, Paris; Gachalá Emerald [6] Mogul Mughal Emerald, 217.80 carats cut; mined in Colombia and cut in the Mughal empire in Hijri year 1107 (1695–1696), resides in the Museum of Islamic Art, Doha, Qatar [7] [8]

  7. Colombian emeralds - Wikipedia

    en.wikipedia.org/wiki/Colombian_emeralds

    This emerald currently resides in the American Museum of Natural History in New York. [4] Crown of the Andes – one of the most famous pieces of Colombian emerald-encrusted jewelry in the world. It has 453 stones totaling 1,521 carats. This piece includes the 45-carat Atahualpa Emerald, which was named after the last Inca emperor. [4]

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