Performing A Test - Geometrics GemPen User Manual

Performing a test

Use the appropriate filter for the specific
gemstone (diamonds, emeralds, rubies and
sapphires). Connect the filter to GemPen
illustrated in figure 5.
Rotate GemPen and examine the LED indicator
®
next to the USB-C port on the unit. If it glows
in the color of white the unit can be used for
testing gemstones. After GemPen
on, hold and point GemPen
gemstone. The filter glass should be within
30-50 mm from the gemstone. It is highly
recommended to place your gemstone in the
casing before switching GemPen
on the position of the gemstone you may want
to twist and tilt GemPen
result. When conducting a test, it should look like
the illustration in figure 6.
On www.gemometrics.com you will find the
fluorescence map and the test-tree which
could be used as a guideline to validate your
gemstones.
Please apply the right filter while validating a
gemstone.
In case the filters are damaged, please order new
on our website www.gemometrics.com.
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Figure 5
is switched
®
towards your
®
on. Depending
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for a more accurate
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as
Important notes
• It is necessary to conduct prior tests to
ascertain the type of stone that is tested.
• To increase accuracy, it is recommended to use
the casing as shown in the illustration in figure 6.
• Do not use GemPen
a red light, as it will yield inaccurate results.
12
Figure 6
when the power indicates
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