| Famous Diamonds Chart |
 Blue Heart Diamond
The Blue Heart weighs 30.82 carats and has a rare, deep blue color. The Parisian firm Atanik Ekyanan of Neuilly cut it into a heart shape in 1909 or 1910, and this date raises the issue of whether the rough stone came from Africa or from India. In 1910 Cartier purchased the diamond and sold it to an Argentinean woman named Mrs. Unzue. At the time, it was set in a lily-of-the-valley corsage and remained so until Van Cleef & Arpels bought the gem in 1953. They exhibited it set in a pendant to a necklace valued at $300,000 and sold it to a European titled family. In 1959 Harry Winston acquired the gem, selling it five years later, mounted in a ring, to Marjorie Merriweather Post. Mrs. Post donated the Blue Heart to the Smithsonian Institute in Washington D.C., where it remains to this day.
Color: deep blue
Rough Weight(carat): 103
Cut Weight(carat): 30.82
Cut: Heart
|  Centenary Diamond
273.85 carats (54.77 g), modified heart-shaped brilliant, the world's largest colorless (grade D), flawless diamond.
Color: colorless
Rough Weight(carat): 599
Cut Weight(carat): 273.85
Cut: Heart
Country of origin: South Africa
Date discovered: 17 July 1986
|  Gruosi Diamond
a heart-shaped black diamond, weighing 115.34 carats (23.07 g).
Color: black
Cut Weight(carat): 115.34
Cut: Heart
Country of origin: India
Date discovered: 1998
|  Heart of Eternity Diamond
perhaps the largest fancy vivid blue, weighing 27.64 carats (5.53 g).
Color: blue
Cut Weight(carat): 27.64
Cut: Heart
Country of origin: South Africa
Date discovered: January 2000
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