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Blue Chalcedony - Hebrew יָשְׁפֶה yošp̄e, Greek ἴασπις iaspis, Latin jaspis; the twelfth stone of the breastplate (Exodus 28:18, 39:11), representing the tribe of Benjamin. In the Greek and Latin texts it comes sixth, and so also in Ezekiel 28:13; in Revelations it is the first (21:19).
Due to centuries of excessive mining, their production was exhausted by 1830, and gemologists and traders have classified Golconda diamonds as antique, rare and precious. Famous Golconda diamonds include the colourless Koh-i-Noor, the Nassak Diamond, the blue Hope Diamond, the Idol's Eye, the pink Daria-i-Noor, the white Regent Diamond, the ...
The Hope Diamond is a 45.52 carats (9.104 g; 0.3211 oz) diamond that has been famed for its great size since the 18th century. Extracted in the 17th century from the Kollur Mine in Guntur, India, [1] [2] the Hope Diamond is a blue diamond.
The geological history of blue diamonds is even more complex, according to research published on Wednesday examining these exceptionally scarce and valuable gems. Scientists analyzed 46 blue ...
The five cardinal gems. Clockwise from top: sapphire, ruby, emerald, amethyst, diamond. Cardinal gems are gemstones which have traditionally been considered precious above all others. The classification of the cardinal gems dates back to antiquity, and was largely determined by ceremonial or religious use as well as rarity. [1]
For example, most white diamonds are discounted in price as a more yellow hue is detectable, while intense pink or blue diamonds (such as the Hope Diamond) can be dramatically more valuable. The Aurora Diamond Collection displays a spectacular array of naturally colored diamonds, which occur in every color of the rainbow. [34] [35]
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Fancy-colored diamonds such as the deep-blue Hope Diamond are among the most valuable and sought-after diamonds in the world. In 2009, a 7-carat (1.4 g) blue diamond fetched the then highest price per carat ever paid for a diamond when it was sold at auction for 10.5 million Swiss francs (US$9.5 million at the time) which is in excess of US$1.3 ...