GemPen® Premium

**To work with ‘GemPen® Premium’, formal gemmological knowledge and understanding of transition elements is required to effectively interpret the results on rubies & sapphires.  ‘GemPen® Premium’ should always be used in combination with other gemmological instruments when screening rubies & sapphires for synthetics & treatments.

• Diamond Verification Instrument
• Indicates natural, HPHT & CVD lab-created diamonds with Filter 1 (included)
• Indicates HPHT colour enhancement treatment on natural diamonds
• Works on rough, polished & mounted gemstones
• All gemstone sizes: 0.01ct-10.00+
• Diamond colour range:  D-M
• Screens 100’s of stones in a matter of minutes
• Full spectrum Xenon UV light source
• USOF – Ultra Spectrum Optical Filtering technology
• Includes all screening filters (Filter 1, Filter 2, Filter 3, Filter 4)
• Travel Case / Darkroom to check gemstones on the go
• Portable pocket size / purse size design
• Lithium-ion battery powered & USB rechargeable
• Access to GemPen® Academy
• Innovated by a Gemmologist for Gemmologists
• Applications:  in the field, wholesale diamond & gemstone 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 and gemstone retailers

GemPen® Premium includes Filter 1 and the Filter Kit which contains all the additional Filters including Filter 2, 3 and the LW Filter 4.  These Filters in combination with the Filter 1 offers the professional gemmological user the means to screen Diamonds, Rubies & Sapphires for synthetics and treatments by searching for discrepancies in the fluorescence and phosphorescence for further analysis.  Filters 2, 3 and 4 are used in combination with Filter 1 to screen for synthetics and flame-fusion (Verneuil), as well as heat, beryllium, cobalt, glass fillings and most other treatments of Corundum.

The included LW Filter 4 (in combination with Filter 1) helps the user to distinguish between a naturally fluorescing diamond, HPHT or CVD grown synthetic diamond or indications of an HPHT treated natural diamond.