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  2. List of sapphires by size - Wikipedia

    en.wikipedia.org/wiki/List_of_sapphires_by_size

    Blue-violet National Museum of Natural History, Washington [9] Star of Bombay: Sri Lanka 182 carats (36.4 g) Star Blue-violet National Museum of Natural History, Washington [10] Ruspoli Sapphire: 136.9 carats (27.38 g) [11] Stuart Sapphire: Sri Lanka 104 carats (20.8 g) Blue Tower of London [12] Bismarck Sapphire: Myanmar: 98.56 carats (19.712 ...

  3. Sapphire - Wikipedia

    en.wikipedia.org/wiki/Sapphire

    Main sapphire-producing countries. Sapphire is a precious gemstone, a variety of the mineral corundum, consisting of aluminium oxide (α-Al 2 O 3) with trace amounts of elements such as iron, titanium, cobalt, lead, chromium, vanadium, magnesium, boron, and silicon.

  4. Sapphire (color) - Wikipedia

    en.wikipedia.org/wiki/Sapphire_(color)

    Sapphire is a saturated shade of blue, referring to the gemstone of the same name. Sapphire gems most commonly occur in a range of blue shades , although they can come in many different colors. Other names for variations of the color sapphire are blue sapphire or sapphire blue , shown below.

  5. Ruspoli Sapphire - Wikipedia

    en.wikipedia.org/wiki/Ruspoli_Sapphire

    The Ruspoli Sapphire, also known as the Wooden Spoon Seller's Sapphire, is a 136.9 carat (27.38 g) blue sapphire that has historically been confused with Grand Sapphire of Louis XIV (which has also been called the Ruspoli Sapphire or Wooden Spoon Seller's Sapphire). Recent research has shown that not only are these two separate gems, but also ...

  6. Yogo sapphire - Wikipedia

    en.wikipedia.org/wiki/Yogo_sapphire

    The sale was finally completed for $65,000 cash and some stock considerations because the company's capital was exhausted, similar to previous Yogo ventures. The Yogo Sapphire Mining Corporation then changed its name to be the same as the former English firm's name: New Mine Sapphire Syndicate.

  7. Queen Marie of Romania Sapphire - Wikipedia

    en.wikipedia.org/.../Queen_Marie_of_Romania_Sapphire

    The Queen Marie of Romania Sapphire is a 478.68 carat (95.736 g) Cornflower blue cushion cut Ceylon sapphire. When it was sold at Christie's in 2003, it was the largest sapphire ever offered at auction. [1] It is named for its association with its first owner, Marie of Edinburgh, Queen of Romania.

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