Graff Lesotho Promise Necklace Graff Lesotho Promise NecklaceGraff’s Lesotho Promise necklace was designed from the 603 carat Lesotho Promise diamond stone, the 15th largest rough diamond ever recovered, found in the Letsenf diamond mine in the African country of Lesotho.

It was sold to Graff and its partner polishing company Safdico for $12.36 million in October last year.

Graff who cut the diamond into twenty six smaller diamonds ranging from .52 carats to the impressive 76.41 carat pear shaped at the tip of the necklace.
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