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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. Crown Jewels of the United Kingdom - Wikipedia

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

   St Edward's Crown is the centrepiece of the British coronation regalia. The Crown Jewels of the United Kingdom, originally the Crown Jewels of England, are a collection of royal ceremonial objects kept in the Jewel House at the Tower of London, which include the coronation regalia and vestments worn by British monarchs.

4. Jewellery - Wikipedia

   en.wikipedia.org/wiki/Jewellery

   The British crown jewels contain the Cullinan Diamond, part of the largest gem-quality rough diamond ever found (1905), at 3,106.75 carats (621.35 g). A diamond solitaire engagement ring Now popular in engagement rings , this usage dates back to the marriage of Maximilian I to Mary of Burgundy in 1477.

5. List of U.S. state minerals, rocks, stones and gemstones

   en.wikipedia.org/wiki/List_of_U.S._state...

   ^ Florida's state gem, moonstone, was adopted to highlight Florida's role in the United States' Lunar program, which landed the first astronauts on the Moon. ^ Since 1983, Massachusetts has had 3 other official state rocks: State Historical Rock (Plymouth Rock), State Explorer Rock (Dighton Rock), and State Building and Monument Stone . In 2008 ...

6. Gemological Institute of America - Wikipedia

   en.wikipedia.org/wiki/Gemological_Institute_of...

   Website. www .gia .edu. The Gemological Institute of America ( GIA) is a nonprofit institute based in Carlsbad, California. It is dedicated to research and education in the field of gemology and the jewelry arts. [1] Founded in 1931, GIA's mission is to protect buyers and sellers of gemstones by setting and maintaining the standards used to ...

7. Graff (jewellers) - Wikipedia

   en.wikipedia.org/wiki/Graff_(jewellers)

   According to Graff, the stone is the "largest highest clarity, highest color diamond ever graded by the Gemological Institute of America (GIA)". Jewellery. The Peacock Brooch takes the form of a peacock with a display of fanned tail feathers, this diamond brooch features a collection of coloured diamonds. A total of 120.81 carats of diamonds ...