Gem Filters
This collection highlights the essential role of selective light absorption in the rapid screening and identification of colored gemstones. By isolating specific wavelengths, these filters—such as the Chelsea and Ruby filters—reveal diagnostic "red" fluorescence and hidden chromium traces that distinguish natural stones from synthetic mimics. This display demonstrates how a simple optical tool remains a cornerstone of the gemological kit, providing a definitive visual bridge between chemical composition and visible color.
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Refractometers
Refractometers
Polariscopes
Polariscopes
Gem Filters
Gem Filters
Gem Reports
Gem Reports
Microscopes
Microscopes
Loupes
Loupes
Journals & Magazines
Journals & Magazines
Diamond Testers
Diamond Testers
Dichroscopes
Dichroscopes
Spectroscopes
Spectroscopes
Diamond Proportionscope
Diamond Proportionscope
Immersion Cells
Immersion Cells
Misc. Gem Instruments
Misc. Gem Instruments
In-house Instruments
In-house Instruments