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Most pieces of the gem, prior to Taaffe, had been misidentified as spinel. For many years afterwards, it was known only in a few samples, and it is still one of the rarest gemstone minerals in the world. [6] Since 2002, the International Mineralogical Association-approved name for taaffeite as a mineral is magnesiotaaffeite-2N'2S.
A pink diamond called Pink Panther, the largest in the world, is the MacGuffin of the 1963 film of the same name. In 2002, when Ben Affleck proposed to Jennifer Lopez with a 6.1-carat pink diamond engagement ring, it catapulted pink diamonds into the popular mindset, triggering an immense surge in pink diamond prices that still exists today. [26]
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.
Since the per carat price of diamond shifts around key milestones (such as 1.00 carat (200 mg)), many one-carat diamonds are the result of compromising cut for carat. Some jewelry experts advise consumers to buy a 0.99-carat (198 mg) diamond for its better price or buy a 1.10-carat (220 mg) diamond for its better cut, avoiding a 1.00-carat (200 ...
A ruby is a pink to blood-red colored gemstone, a variety of the mineral corundum (aluminium oxide). Other varieties of gem-quality corundum are called sapphires. Ruby is one of the traditional cardinal gems, together with amethyst, sapphire, emerald, and diamond. [1] The word ruby comes from ruber, Latin for red.
There are considerable price shifts near the edges of the size bands, so a 0.49 carats (98 mg) stone may list at $5,500 per carat = $2,695, while a 0.50 carats (100 mg) stone of similar quality lists at $7,500 per carat = $3,750. Stones near the top of a size band (or rarer fancy coloured varieties) tend to be uprated slightly.
The Graff Pink is a rare 24.78 carat pink diamond, once owned by American celebrity jeweller Harry Winston. The diamond, mounted in a ring, was sold by Sotheby's auctioneers in Geneva , Switzerland on 16 November 2010.
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]