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Nano Breakthrough puts One-Micron Logo on Diamond

January 14, 21 by John Jeffay

(IDEX Online) - A diamond security firm says it can now apply the smallest ever logo or characters below the surface of a diamond.

They have a diameter of just a micron (0.001mm) and are visible only at 100 times magnification.

UK-based Opsydia says its technology works on even the highest-clarity gem - with virtually no impact on its grade. 

It applies a nano-scale logo, serial number or encrypted code that links to a diamond's grading report, blockchain record or branded jewelry origins. 

Opsydia says Swiss Gemmological Institute (SSEF) had independently verified its claim that the identifier had only a "negligible impact" on a diamond's clarity grade.

CEO Andrew Rimmer said: "This is a vital milestone for Opsydia as it means every diamond, no matter its clarity or size, can be secured with an identity feature beneath its surface."

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