The allnatt diamond, with a market value of US $3 million (about RMB 18.57 million): named after its former owner, major Alfred Ernest allnatt, the diamond weighs 101.29 carats (20.258 grams). The gem association of America (GIA) rated it as brilliant yellow diamond according to its color grade. At present, the discovery site of this diamond is not clear, but some experts say that it may come from the debirsiplemir diamond mine.
The Moussaieff red diamond, with a market value of US $7 million (about RMB 43.34 million): the Moussaieff red diamond weighs 5.11 carats (1.022 grams), is triangle cut and certified by GIA as colorful red diamond. Although it is not big compared with other rare diamonds, it is the largest colorful red diamond among all the Red Diamonds rated by GIA.
The heart of eternity, with a market value of US $16 million (about RMB 99.07 million): the heart of eternity was first found in a diamond mine in South Africa, weighing 27.64 carats (5.528 grams), and was certified by GIA as a fancy blue diamond Steinmetz diamond group cut the original diamond and sold it to De Beers, the world's largest diamond manufacturer.
Wittelsbach diamond, with a market value of US $16.4 million (about RMB 100 million): the Wittelsbach blue diamond weighs 35.36 carats (7.11g), has a diameter of 40mm, a width of 8.29MM and a cleanliness of vs 2. It was once a gem inlaid on the crown of the kings of Austria and Bavaria. Its color and purity are comparable to those of the heart of Hope diamond.
The Steinmetz pink, with a market value of US $25 million (about RMB 150 million), weighs about 50.60 carats (11.92g), and is certified by GIA as vivid pink, which is the largest colorful pink diamond in the world. It once flourished at the Smithsonian Museum's diamond light exhibition.
De Beers century diamond, with a market value of US $100 million (about RMB 600 million): certified by GIA as the highest diamond grade D, it weighs about 54.77 carats, and is the third largest diamond produced by delbis premier diamond mine.
The hope diamond, with a market value of US $350 million (about RMB 2.2 billion), weighs about 45.52 carats (9.10 grams) and is now in the Smith National Museum of natural history in Washington, USA. The naked eye looks blue, because the diamond contains a trace of boron, but under ultraviolet light, the diamond will be red light.
The Cullinan, with a market value of US $400 million (about RMB 2.5 billion): the 'heart of Africa' diamond weighs about 310675 carats (621.35 grams), which is the largest original diamond in the world. After polishing, the original diamond was cut into 530.2 carats (106 grams) of the 'heart of Africa No.1'. It is reported that it was once the largest diamond in the world. Until 1985, a 545.67 carat (109.13 g) Gold Commemorative Coin diamond was found in the same diamond mine.
The sancy diamond, priceless: the sancy diamond weighs about 55.23 carats (11.05 grams). This light yellow diamond was once owned by the Mughal emperor. It is said that it originated from India and is the first large diamond cut into a symmetrical plane. It is now in the collection of French crown jewels at the Louvre.
Koh-i-noor, priceless: 'Koh-i-noor' means' mountain of light 'in Persian. Weighing about 105 carats (21.6 grams), this diamond is from a mine in Andhra Pradesh, India. It has been owned by the rulers of Sikh, Mughal and Persian Empire. Its length, width and height are 36.00 mm, 31.90 mm and 13.04 mm respectively. It is now owned by the British royal family and placed in the tower of London.