Gemometrics GemPen Diamond Screener

Gemometrics GemPen Diamond Screener


GemPen® is a powerful portable gemmological instrument for today's jewellers & gemmologists. Providing the ability to screen diamonds, rubies & sapphires for synthetics & treatments.

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GemPen® Diamond Screener

  • Indicates HPHT & CVD lab created diamonds with Filter 1 (included)
  • Indicates HPHT colour enhancement treatment on natural diamonds
  • Works on rough, polished & mounted diamonds
  • All diamond sizes: 0.01ct-10.00+
  • Diamond colour range: D-M
  • Screens 100’s of stones in a matter of minutes
  • Upgradable by purchasing additional filters
  • Travel Case / Darkroom to check diamonds on the go
  • Portable pocket size / purse size design
  • Battery powered & USB rechargeable
  • Access to GemPen® Academy
  • Innovated by a Gemmologist for Gemmologists
  • Applications: in the field, wholesale diamond buyers, gemmological labs & educational institutes, appraisal services providers, screening while shopping at trade shows & when receiving set goods, pawn shops, auction houses, jewellery repair & custom design houses, jewellers, all natural & lab created diamond retailers

We recommend adding the Filter 4 which will help you distinguish between a natural fluorescing diamond and a lab created one.


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