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It is typically blue, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors; "parti sapphires" show two or more colors. The only color corundum stone that the term sapphire is not used for is red, which is called a ruby. [1] Pink colored corundum may be either classified as ruby or sapphire depending on locale.
Even the same named gemstone can occur in many different colors: sapphires show different shades of blue and pink and "fancy sapphires" exhibit a whole range of other colors from yellow to orange-pink, the latter called "padparadscha sapphire". [39] This difference in color is based on the atomic structure of the stone.
Logan Sapphire; Star of Bombay, given to Mary Pickford by Douglas Fairbanks, Sr; Star of India; Stuart Sapphire; Black Star of Queensland; Star of Adam, with a weight of 1,404.49 carats (280.898 g), it is the largest star sapphire in the world. Queen Marie of Romania Sapphire
Pink gold uses the least copper, followed by rose gold, with red gold having the highest copper content. Examples of the common alloys for 18K rose gold, 18K red gold, 18K pink gold, and 12K red gold include: [3] 18K red gold: 75% gold, 25% copper; 18K rose gold: 75% gold, 22.25% copper, 2.75% silver; 18K pink gold: 75% gold, 20% copper, 5% silver
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]
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i was just wondering about the prices of these gems per carat in the US. dalegdelph197211@aol.com —Preceding unsigned comment added by 80.76.243.228 09:33, 20 December 2007 (UTC) Gemstone prices tend to be nonlinear; that is, the price for ten one carat gems of equal quality will usually be less than one equal quality ten carat stone.
Main chrysoberyl producing countries. The mineral or gemstone chrysoberyl is an aluminate of beryllium with the formula Be Al 2 O 4. [5] [6] The name chrysoberyl is derived from the Greek words χρυσός chrysos and βήρυλλος beryllos, meaning "a gold-white spar".