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The pink, cushion-cut, 34.65-carat Princie Diamond used to be part of the Jewels of the Nizams of Hyderabad; it was auctioned in 2013 by Christie's and sold for US$ 39.3 million, which is the highest-recorded auction price for a Golconda diamond and a world record for US$ 1.1 million per carat.
Dispersion: 0.017 [1]: Ultraviolet fluorescence: Pink stones; inert to very weak red to violet in long and short wave [1]: Absorption spectra: Strong narrow band at 498 nm, and almost complete absorption of red down to 640 nm in blue and green stones; red and pink stones show lines at 458 and 451 nm, as well as a broad band in the green spectrum [1]
A single carat of morganite can cost about $300. [12] Morganite is one of the rarest members of the beryl family, second only to red beryl. Due to the scarcity of morganites, especially those of high quality, they tend to be among the most expensive per carat. [13] Ones that are deep pink in color tend to be the most valuable. [14]
London-traded diamond mining firm Gem Diamonds announced on Thursday that it sold a 13.3-carat pink diamond for $8.8m.
24.78-carat (4.956 g) A 24.78-carat Fancy Intense Pink diamond and, until the sale of the Sweet Josephine diamond in November 2015, it was the most expensive jewel ever sold at auction. Previously owned by Harry Winston and an unnamed private collector, and bought by Laurence Graff (November 2010). [31] —
Although considering its rarity and only type locality, even the highest quality charoite gemstones cost only a few dollars a carat, usually costing between 1.10 - $3 per carat. [ 9 ] [ 10 ] In its price, color and chatoyancy are the main factors.
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