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An uncut, rough yellow sapphire found at the Spokane Sapphire Mine near Helena, Montana. Sapphire is one of the two gem-varieties of corundum, the other being ruby (defined as corundum in a shade of red). Although blue is the best-known sapphire color, they occur in other colors, including gray and black, and also can be colorless.
Ruspoli Sapphire: 136.9 carats (27.38 g) Stuart Sapphire: Sri Lanka 104 carats (20.8 g) Blue Tower of London: Bismarck Sapphire: Myanmar: 98.56 carats (19.712 g) Table Blue National Museum of Natural History, Washington James J. Hill Sapphire: 22.66 carats (4.532 g) Cornflower National Museum of Natural History, Washington
The Logan Sapphire brooch, National Museum of Natural History, Washington, D.C. The Logan Sapphire is a 422.98-carat (84.596 g) sapphire from Sri Lanka.One of the largest blue faceted sapphires in the world, it was owned by Sir Victor Sassoon and then purchased by M. Robert Guggenheim as a gift for his wife, Rebecca Pollard Guggenheim, who donated the sapphire to the Smithsonian Institution in ...
Sapphire's products are based on AMD graphics processing units, and both AMD and Intel motherboard chipset technology. The company is the largest supplier of AMD-based video cards in the world. Sapphire was the first company to release a video card with a high definition multimedia interface connector.
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The Star of Adam is an oval-shaped blue star sapphire, currently the largest star sapphire in the world. It weighs 1,404.49 carats (280.898 g; 9.9084 oz). 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.
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Estimated value. Est. US$100 million. Serendipity Sapphire is the world's largest star sapphire cluster. It weighs 510 kilograms (2,600,000 carats). [1] It was found in Kahawatte in the Ratnapura District, Sri Lanka, in July 2021. Its worth is estimated to be up to US$100 million. [1]