A new tool for screening gemstones
GemPen is portable, time saving and versatile.

Get to know GemPen


Xenon UV screening tool for jewellers and gemmologists

Tailored Accessories

Three additional interchangeable Filters

Tailored Accessories

Travel Case with perfect fit and feel


A portable viewing environment

GemPen Academy / Gemstone map

Reference images for more accurate interpretations


Watch GemPen screen diamonds for synthetics

Awarded design

Awarded with a Red Dot for user-centered design excellence

Third party validation

GemPen is included in the Assure Program for verification instruments

GemPen features:

Distinctive indications

Separate natural untreated from synthetic and treated gems


Bring it anywhere. Battery powered and rechargeable

Throughout the value chain

Works for rough, polished and mounted gems

Time saving

Screen hundreds of gems in a matter of minutes

Size independent

Screen gems regardless of size


Dust, moist and shock resistant