*NEW* GemPen ® Synthetic Tester

We ship worldwide from Belgium within 1–2 business days using trusted carriers including FedEx, TNT Express and DPD.

You can expect your parcel within 2 to 8 business days from when it leaves our warehouse.

Shipping costs are calculated at checkout based on your destination and parcel weight. Tracking is provided where available.

International orders may be subject to local customs duties or taxes.

Product Specifications:

Hexagonal Pen Grip Interchangeable

Filters USB-C Standard For Recharging Dust & Rain Proof Shock resistant, with protective casing

Highly Durable

Easy to use

Hard case designed to be used as darkroom

GemPen Premium is the most complete kit that we have to offer; It includes all the different filters to screen and analyse Diamonds and to give indications on flame-fusion (Verneuil) lab-created blue Sapphires. The LW Filter 4 (in combination with Filter 1) helps the user to distinguishing between a natural fluorescing diamond and a synthetic one. Filters 2 and 3 are used to screen for Heat, Beryllium and other treatments.

Below is a Tutorial Video that shows how to screen diamonds using GemPen:

https://youtu.be/IWT5oTr6EI8