GCF-T02 Chelsea Color Filter
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Product Description
This filter is designed to transmit only deep red and yellow-green light (best obtained under strong electric light).
Just hold the filter close to your eye and look at the stones. Multiple stones can be viewed at once.
Chelsea filters are primarily used for spotting fakes added to colored stone parcels and mixed-in jewelry, and to differentiate emerald from emerald look-alikes, it is also useful for checking aquamarine and sapphires.
With the filter emeralds usually appear distinctly red or pinkish in color, while most imitations remain green.
In rare cases, certain emeralds, most notably from South Africa, may not show any pinkish color at all.
A synthetic emerald will react the same as a genuine one.
Specification:
● Helps identify certain green, red, and blue stones.
● Detects dyes in certain gems like dyed green and blue chalcedony.
● Demension: 50.7x10.3mm (L*H)
● Package: by leather box & white box