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Sapphire Origin Date Size Cut Color Location Ref Star of Adam: Sri Lanka 2015 1,404.49 carats (280.898 g) Star Blue Anonymous owner [3] Black Star of Queensland: Australia 1938 733 carats (146.6 g) Star Black Anonymous owner [4] Star of India: Sri Lanka 563.4 carats (112.68 g) Star Blue-gray American Museum of Natural History, New York [5]
The Millennium Sapphire is a blue sapphire discovered in 1995 in Madagascar, the natural dark–blue gem weighed 89,850 carats (nearly 40 pounds, or 17.97 kilograms). The Millennium Sapphire History
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 ...
The Star of Adam is an oval-shaped blue star sapphire, currently the largest star sapphire in the world. [1] [2] [3] It weighs 1,404.49 carats (280.898 g; 9.9084 oz). [4]Prior to its discovery in 2015, the Black Star of Queensland, weighing 733 carats (146.6 g), was the largest star sapphire gem in the world.
Following the successful synthesis of ruby, Verneuil focused his efforts on sapphire. Synthesis of blue sapphire came in 1909, after chemical analyses of sapphire suggested to Verneuil that iron and titanium were the cause of the blue color. Verneuil patented the process of producing synthetic blue sapphire in 1911. [49] [5]: 254–255
The 423-carat (85 g) blue Logan Sapphire. 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.
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1521 N Cockrell Hill Rd, Dallas, TX · Directions · (214) 330-7249