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  2. Carroll Chatham - Wikipedia

    en.wikipedia.org/wiki/Carroll_Chatham

    Carroll Chatham (1914–1983) was an American chemist who developed the flux method for synthesizing emeralds.He was the first person to develop a method for creating man-made emeralds that was able to make them commercially available.

  3. Emerald - Wikipedia

    en.wikipedia.org/wiki/Emerald

    Emerald is regarded as the traditional birthstone for May as well as the traditional gemstone for the astrological sign of Taurus. [38] [need quotation to verify] Traditional alchemical lore ascribes several uses and characteristics to emeralds: The virtue of the Emerald is to counteract poison.

  4. Jewels of Diana, Princess of Wales - Wikipedia

    en.wikipedia.org/wiki/Jewels_of_Diana,_Princess...

    The Aquamarine ring, an emerald cut aquamarine flanked by small, solitaire diamonds and set in 24-carat yellow gold, was commissioned by the Princess from Asprey in 1997 and was used by the Princess as a replacement for her engagement ring after her divorce from the Prince of Wales in 1996. [70]

  5. Ring (jewellery) - Wikipedia

    en.wikipedia.org/wiki/Ring_(jewellery)

    Ruby ring. A ring is a round band, usually made of metal, worn as ornamental jewelry.The term "ring" by itself denotes jewellery worn on the finger; when worn as an ornament elsewhere, the body part is specified within the term, e.g., earrings, neck rings, arm rings, and toe rings.

  6. 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 ...

  7. Diamond cut - Wikipedia

    en.wikipedia.org/wiki/Diamond_cut

    Instead of a culet, step-cut stones have a keel running the length of the pavilion terminus. Like other fancy shaped diamonds, emerald cut diamonds can come in a variety of length to width ratios. The most popular and classic outline of emerald cut diamonds are close a value of 1.5. The Asscher cut, a square modified emerald cut, is also popular.