Protect yourself. Protect your business.
Screen every diamond.
GemPen® is a powerful portable tool for jewellers & gemmologists to screen diamonds, rubies & sapphires for synthetics & treatments.
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Diamond Verification Instrument
Xenon UV screening tool with Ultra Spectrum Optical Filtering Technology
Separate natural untreated from synthetic and treated stones
Throughout the value chain
Works for rough, polished and mounted stones
A portable viewing environment for GemPen®
GemPen Academy / Gemstone Map
Knowledge resource hub for interpreting results
💫 Observe the results... Indicating a mixture
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GemPen® Premium & Darkroom - Screening Synthetic Ruby
GemPen® Premium & Darkroom – Screening Synthetic Ruby
GemPen® Diamond Screener & Darkroom Tutorial - Natural or Lab Created?
Watch GemPen® screen diamonds for synthetics
Three additional interchangeable Filters
Travel Case with perfect fit and feel
Awarded with a Red Dot for user-centered design excellence
Third party validation
GemPen® is included in the Assure Program for diamond verification instruments
Bring it anywhere. Battery powered and USB rechargeable
Screen hundreds of stones in a matter of minutes
Screen stones regardless of size
Dust, moist and shock resistant