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2. The Star of Adam - Wikipedia

   en.wikipedia.org/wiki/The_Star_of_Adam

   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.

3. 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 ...

4. Sapphire - Wikipedia

   en.wikipedia.org/wiki/Sapphire

   In October 2014, Sotheby's Hong Kong achieved consecutive per-carat price records for Kashmir sapphires – first with the 12.00 carat Cartier sapphire ring at US$193,975 per carat, then with a 17.16 carat sapphire at US$236,404, and again in June 2015 when the per-carat auction record was set at US$240,205. [39]

5. 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 ...

6. Here's the little-known history behind Duchess Kate's ... - AOL

   www.aol.com/lifestyle/apos-little-known-history...

   Duchess Kate's $500,000 sapphire and diamond engagement ring still rings every bit iconic to this day. ... House of Garrad to create a sapphire blue brooch with ... Coach purse style that costs ...

7. Yogo sapphire - Wikipedia

   en.wikipedia.org/wiki/Yogo_sapphire

   A 0.43-carat (0.086 g) teardrop-shaped cornflower blue Yogo sapphire. Sapphires are a color variety of corundum, a crystalline form of aluminium oxide (Al 2 O 3). [14] Corundum is one of the hardest minerals, rating 9 on the Mohs scale. [15] Corundum gems of most colors are called sapphires, except for red ones, which are called rubies. [16]