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Sunday, April 18, 2021

Large Type IIa Diamond From Arkansas, USA

With FTIR, GIA researchers were able to identify the diamond as type IIa with no measurable nitrogen impurities. Type IIa diamonds are extremely rare among natural diamonds, especially from a source in the United States. A collector's diamond indeed.


Useful link: https://www.gia.edu/gems-gemology/winter-2020-labnotes-large-diamond-arkansas

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