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  2. List of rubies by size - Wikipedia

    en.wikipedia.org/wiki/List_of_rubies_by_size

    Uncut size Cut size Location Ref Maharlika Star Ruby India: 10,820 carats (2,164 g) Philippines: Liberty Bell Ruby: Burma: 1976 [a] 8,500 carats (1,700 g) Stolen and still missing [2] Neelanjali Ruby: 1,370 carats (274 g) Prince of Burma: Burma: 1996 950 carats (190 g) Rosser Reeves Ruby: Sri Lanka: 138.7 carats (27.74 g) National Museum of ...

  3. Sunrise Ruby - Wikipedia

    en.wikipedia.org/wiki/Sunrise_Ruby

    Sunrise Ruby. The Sunrise Ruby[1][2][3] has been the world's most expensive ruby, most expensive coloured gemstone, and most expensive gemstone other than a diamond [2][3][4] until the discovery of the Estrela de Fura. Originally mined in Myanmar, its current name is derived from a poem of the same name, written by the 13th-century Sufi poet Rumi.

  4. Ruby - Wikipedia

    en.wikipedia.org/wiki/Ruby

    Several ruby-set pieces were included in the sale, notably a ring set with an 8.24 ct gem that broke the 'price-per-carat' record for rubies (US$512,925 per carat – i.e., over US$4.2 million in total), [37] and a necklace [38] that sold for over US$3.7 million.

  5. Black Prince's Ruby - Wikipedia

    en.wikipedia.org/wiki/Black_Prince's_Ruby

    Black Prince's Ruby. 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. [1] The spinel is one of the oldest parts of the Crown Jewels of the United Kingdom, with a history dating back ...

  6. Neelanjali Ruby - Wikipedia

    en.wikipedia.org/wiki/Neelanjali_Ruby

    The Neelanjali ruby, along with the Rajarathna ruby, was used as a Shiva lingam and was worshipped for centuries in the home of the family that owned it. The ruby belongs to G. Vidyaraj, the scion of the Aravidu dynasty which was the last of the four imperial lineages to rule the Vijayanagara empire. It is reported to be in safekeeping in ...

  7. Estrela de Fura - Wikipedia

    en.wikipedia.org/wiki/Estrela_de_Fura

    July 21, 2022. Estimated value. $34.8 million. Estrela de Fura is a 101-carat ruby, and in its rough shape, is considered amongst the largest gem quality rubies ever mined. [2][3][4] The stone is characterized by an extremely rare vivid red hue, fluorescence, and clarity. [3][5][6] The gem was originally discovered in the Montepuez ruby mine in ...

  8. Carat (mass) - Wikipedia

    en.wikipedia.org/wiki/Carat_(mass)

    Diamonds. The carat (ct) is a unit of mass equal to 200 mg (0.00705 oz; 0.00643 ozt), which is used for measuring gemstones and pearls. The current definition, sometimes known as the metric carat, was adopted in 1907 at the Fourth General Conference on Weights and Measures, [1][2] and soon afterwards in many countries around the world.

  9. DeLong Star Ruby - Wikipedia

    en.wikipedia.org/wiki/DeLong_Star_Ruby

    The DeLong Star Ruby, a 100.32-carat (20.064 g) oval cabochon star ruby, was discovered in Burma in the 1930s. [1] It was sold by Martin Ehrmann to Edith Haggin DeLong for US$ 21,400, who then donated it to the American Museum of Natural History in New York City in 1937. On October 29, 1964, the DeLong star ruby was one of a number of precious ...