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Az eddig meglelt legnagyobb smaragd (1759 karátos)
The Guinness Emerald Crystal discovered in the Coscuez emerald mines is one of the largest gem-quality emerald crystals in the world, and is the largest emerald crystal in the collection of emeralds belonging to the Banco Nacionale de la Republica in Bogotá, the capital city of Colombia. The origin of the name Guinness is not known, but the elongated, 1759-carat, bright green crystal undoubtedly had all the credentials to enter the Guinness book of world records as the largest gem-quality emerald in the world at least for some years until it was surpassed by other larger natural emerald crystals.
Mouna gyémánt: VS1-es tisztaságú
A 112,53 karátos Mouna gyémánt az egyik legnagyobb sárga gyémánt a Földön. A VS1 tisztaságú, tökéletes csiszolású kő 1998-ban közel 700 millió forintért cserélt gazdát a Christie's árverésén.
Nur-Ul-Ain gyémánt
The centerpiece of this tiara is the Nur-Ul-Ain Diamond, one of the largest pink diamonds in the world. The diamond is thought to have been brought from India, along with the Darya-I-Nur Diamond. The diamond is set in platinum, and is surrounded by diamonds in shades of pink, yellow, and colorless, with a row of colorless baguette diamonds in tapering sizes lining the base of the tiara. The Nur-Ul-Ain is an oval brilliant cut of around 60 carats and measures approximately 30 × 26 × 11 mm. The other diamonds range from 14 to 19 carats each. The tiara contains 324 diamonds total.
Paragon, a hétoldalú gyémánt
A "Paragon" egy különösen értékes, szokatlan hétoldalú gyémánt neve. A paragonnak több jelentése is van Amellett, hogy egy dolog vagy személy legkiválóbb tulajdonsága, azt is jelenti, hogy az így jelzett gyémánt hibátlan és több mint száz karát.
Victoria-Transvaal gyémánt
The Victoria-Transvaal is a 67.89-carat, brownish-yellow pear shaped stone. It was cut from a 240-carat crystal that was found in the Transvaal, South Africa. The first cutting produced a 75-carat 116-facet stone that measured 1 x 1³/8 inches; a recutting retained the same length and width, but reduced the depth to better proportions, making it more brilliant. The diamond has been featured in several Hollywood films, including a Tarzan episode from 1952 titled Tarzan's Savage Fury, and in leading exhibitions in the United States and Canada.