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The Moussaieff Red
 
5.11 carats
Brazil
Loaned by Moussaieff


Although this triangular diamond is smaller than others on display, its vivid red color is astounding. Deep red is among the rarest of diamond colors. Cut and polished from a 13.9-carat crystal discovered in the 1990s by a Brazilian farmer, this is the largest red diamond known.

Photo credit for photograph of
The Moussaieff Red
The Gemological Institute of America