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  2. Samarian spinel - Wikipedia

    en.wikipedia.org/wiki/Samarian_Spinel

    It and a smaller 270-carat (54 g) spinel were captured and taken to Iran by Nader Shah following his 18th-century invasion of India.. The Samarian spinel has a hole in it. According to a diary entry of the court physician to Naser al-Din Shah Qajar, the shah told the physician that the stone once adorned the neck of the biblical golden calf, which the Israelites are said to have made while ...

  3. List of individual gemstones - Wikipedia

    en.wikipedia.org/wiki/List_of_individual_gemstones

    Samarian Spinel, the world's largest spinel; Menshikov Ruby, the world's second largest spinel set on top of the Great Imperial Crown of Russia; Timur Ruby, believed to be a ruby until 1851, hence its name; Black Prince's Ruby, the famous spinel mounted on the Imperial State Crown of the United Kingdom

  4. Spinel - Wikipedia

    en.wikipedia.org/wiki/Spinel

    Some spinels are among the most famous gemstones; among them are the Black Prince's Ruby and the "Timur ruby" in the British Crown Jewels, [11] and the "Côte de Bretagne", formerly from the French Crown jewels. [12] The Samarian Spinel is the largest known spinel in the world, weighing 500 carats (100 g). [13]

  5. Bulgari Unveils Magnifica High Jewelry Collection in Milan

    www.aol.com/bulgari-unveils-magnifica-high...

    A stunning spinel exemplifies this claim. Hailing from Tajikistan, and weighing 131.21 carats, it is the fourth largest spinel in terms of carat weight in the world but “the most beautiful in ...

  6. Spinel of the Great Imperial Crown - Wikipedia

    en.wikipedia.org/wiki/Spinel_of_the_Great...

    The Spinel of the Great Imperial Crown (Russian: Шпинель Большой императорской короны) or Menshikov Ruby [1] (Russian: Рубин Меншикова) is a historical gemstone, a red spinel which tops the Great Imperial Crown of Russia from the 18th century to the present day.

  7. Black Prince's Ruby - Wikipedia

    en.wikipedia.org/wiki/Black_Prince's_Ruby

    The gemstone at the front of the Imperial State Crown. The Black Prince's Ruby is a large, irregular cabochon red spinel weighing 170 carats (34 g) set in the cross pattée above the Cullinan II diamond at the front of the Imperial State Crown of the United Kingdom.

  8. 18 Most Expensive Gemstones in the World - AOL

    www.aol.com/finance/18-most-expensive-gemstones...

    18. Platinum. Cost: $33.02 per gram Platinum is a beautiful precious metal that is in a similar category as gold and silver. All three of these metals are frequently traded in the global markets ...

  9. Imperial crown of Russia - Wikipedia

    en.wikipedia.org/wiki/Imperial_crown_of_Russia

    The crown is also decorated with one of the seven historic stones of the Russian Diamond Collection: a large precious red spinel weighing 398.72 carats (79.744 g), known as the Menshikov Ruby, which was bought in China in 1702 by the Nerchinsk merchant Yan Istopnikov. It is believed to be the second largest spinel in the world. [citation needed]