Identification

An interesting black diamond imitation.

We recently had the chance to see an interesting black diamond imitation here at ALGT laboratory. It is in reality a polycrystalline material composed of tiny fragments of black diamonds glued together by a silicon based ‘matrix’. This material has been on the market since around 2000, but it is still quite unusual to see it in the lab.
ALGT

Independent gemological laboratory providing trusted certification from the heart of Antwerp's diamond district since 2019.

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