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The Sunrise Ruby greatly surpassed the previous record holder, the Graff ruby ring, which sold for US$8.6 million in November 2014. [4] [12] Its record-setting price has been attributed to the rapid increase in prices for coloured gemstones and public auctions, with figures often "rivaling the performance of the much-sought-after colored ...
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.
Ruby Timms Price (December 13, 1915 – March 17, 2018) was an American educator and activist. She is considered to be the first Black teacher in the state of Utah , in the United States. [ 1 ]
The Black Prince's Ruby is a large, irregular cabochon red spinel weighing 170 carats (34 g) ... with a history dating back to the middle of the 14th century.
Ruby was the first gemstone to be synthesized by Auguste Verneuil with his development of the flame-fusion process in 1902. [59] Synthetic corundum continues to be made typically by flame-fusion as it is most cost-effective, but can also be produced through flux growth and hydrothermal growth.
The Liberty Bell Ruby. The Liberty Bell Ruby is a sculpture crafted from the world's largest mined ruby, [1] discovered in East Africa in the 1950s. [2] It weighs four pounds, is eight and a half thousand carats (8,500), and is sculpted into a miniature form of the Liberty Bell. It has 50 diamonds set in it and is valued at $2 million.
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The Timur Ruby (also Khiraj-i-alam, "Tribute to the World") is an unfaceted, 352.54-carat (71 g) polished red spinel set in a necklace. [1] It is named after the ruler Timur , [ 2 ] founder of the Timurid Empire and purportedly one of its former owners.