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2. Cullinan Diamond - Wikipedia

   en.wikipedia.org/wiki/Cullinan_Diamond

   Cullinan Diamond. The Cullinan Diamond is the largest gem-quality rough diamond ever found, [2] weighing 3,106 carats (621.20 g), discovered at the Premier No.2 mine in Cullinan, South Africa, on 26 January 1905. It was named after Thomas Cullinan, the owner of the mine. In April 1905, it was put on sale in London, but despite considerable ...

3. Golconda diamonds - Wikipedia

   en.wikipedia.org/wiki/Golconda_diamonds

   Golconda diamonds are mined in the Godavari-Krishna delta region of Andhra Pradesh, India. Golconda Fort in the western part of modern-day Hyderabad was a seat of the Golconda Sultanate and became an important centre for diamond enhancement, lapidary, and trading. Golconda diamonds are graded as Type IIa, are formed of pure carbon, are devoid ...

4. Diamond (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Diamond_(gemstone)

   Diamond [a] is a gemstone formed by cutting a raw diamond. Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times. The hardness of diamond and its high dispersion of light —giving the diamond its characteristic "fire"—make it useful for industrial applications and ...

5. 'Antiques Roadshow': diamond and ruby jewelry worth a fortune

   www.aol.com/news/2014-08-12-antiques-roadshow...

   Well, today, that 3-piece set is valued between $400,000-$450,000. According to The Daily Mail, rubies are the most expensive gems per carat on earth! To get your hands on some rubies and/or ...

6. Crown Jewels of the United Kingdom - Wikipedia

   en.wikipedia.org/wiki/Crown_Jewels_of_the_United...

   The sceptre is decorated with 285 gemstones, including 94 diamonds, 53 rubies, 10 emeralds, 4 sapphires and 3 spinels. Circling the rod are bands of precious stones. At the top is a gold monde set with diamonds and topped by a plain cross, upon which sits a white enamelled dove with its wings outspread, representing the Holy Ghost.

7. Taylor–Burton Diamond - Wikipedia

   en.wikipedia.org/wiki/Taylor–Burton_Diamond

   The original rough diamond was found in 1966 in the Premier Mine in South Africa, weighing 241 carats (48.2 g). Harry Winston cut it into the shape of a pear weighing 69.42 carats (13.884 g). At the time of sale in 1969, the diamond was set in a platinum ring with two smaller diamonds on either side.