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2. Black Star of Queensland - Wikipedia

   en.wikipedia.org/wiki/Black_Star_of_Queensland

   Black. The Black Star of Queensland, also known as the Brimstone of Queensland, named after its nature and place of origin, is a 733-carat (146.6 g) black sapphire, and was the world's largest gem quality star sapphire until The Star of Adam was discovered. The Black Star sapphire is an oval-shaped gemstone cut as a cabochon like all other star ...

3. Black Star sapphire - Wikipedia

   en.wikipedia.org/wiki/Black_Star_sapphire

   Black Star sapphire. Black star sapphire, also known as 'natural star sapphire' is a type of corundum (aluminum oxide). It is usually cut into a dome shape to show a star feature. If it is cut with a flat or almost flat face, then a golden colour is revealed. The chemical composition and features for black star were analyzed in the Journal of ...

4. List of sapphires by size - Wikipedia

   en.wikipedia.org/wiki/List_of_sapphires_by_size

   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 Black Star of Queensland: Australia 1938 733 carats (146.6 g) Star Black Anonymous owner Star of India: Sri Lanka 563.4 carats (112.68 g) Star Blue-gray American Museum of Natural History, New York

5. Jewels of Diana, Princess of Wales - Wikipedia

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

   Jewels of Diana, Princess of Wales. Diana wearing a pearl necklace and pearl earrings, featuring double wire of gold with diamonds and four equidistant knots, during a visit to Washington, D.C. in June 1997. Diana, Princess of Wales, owned a collection of jewels both as a member of the British royal family and as a private individual.

6. Asterism (gemology) - Wikipedia

   en.wikipedia.org/wiki/Asterism_(gemology)

   A purple-pink star sapphire displaying asterism in a platinum ring. World's Largest Sapphire with Asterism Named The Eye Of God Star Sapphire Weighing 13,214 Carats. World's Largest Ruby with Asterism Named The Maharlika Star Ruby Weighing 10,820 Carats. An asterism (from Ancient Greek ἀστήρ (astḗr) 'star' and -ism) is a star-shaped ...

7. Power ring (DC Comics) - Wikipedia

   en.wikipedia.org/wiki/Power_ring_(DC_Comics)

   The first appearance of a power ring was in All-American Comics #16 on July 14, 1940, the flagship title of comic book publisher All-American Publications, which featured the first appearance of Alan Scott. Creator Martin Nodell has cited Richard Wagner 's opera cycle The Ring of the Nibelung and the sight of a trainman's green railway lantern ...