HANNEMAN GEM FILTER SET

The Hanneman Gem Filter Set – Model 4000 is a set of gemological optical filters designed by Dr. William (Bill) Hanneman, Ph.D., an internationally renowned chemist and gemologist, for the practical and rapid identification of gemstones.

This instrument allows you to observe stones through specific wavelength bands, highlighting characteristic color reactions useful for distinguishing natural, synthetic, and imitation gemstones. It is particularly appreciated for its effectiveness, ease of use, and portability.

This Hanneman Gem Filter set contains five filters:

• Aquamarine filter,
• ruby filter,
• synthetic emerald filter,
• synthetic emerald support filter
• a handy multi filter for bead pickers.

Great for making gem testing quicker, allowing analysis of large parcels of stones at once.

Main Features

Complete set of selected gemological filters

Can be used with incandescent light

Ideal for analyzing rubies, emeralds, aquamarines, spinels, garnets, topazes, and many other gemstones

Quick identification support for commercial, educational, and collecting purposes

Practical alternative to more complex laboratory instruments