Colored stones Tester

Presidium Gem Indicator PGI

PRESIDIUM PRIM II - REFRACTIVE INDEX METER

Diamond Tester - Gem Tester II Plus Presidium

Over 1400 Colors Available
Two years in development, this new color communication system, based on Munsell has over 1,400 colors in this master comparison book of colors. Each of 40 pages has its own unique overlay chart, developed by color specialists and adapted for use in the jewelry industry by our own team of experts.
The transparent overlay chart gives the name of the color.

Gemlogis Bleu is ONLY a display to be associated with Belize or Mantis testers for the identification of diamonds from its imitations and through the thermal test of colored stones.
Convenient and clear, the display allows you to select the color of the tested stone and provides a useful indication of possible alternatives.
Useful tool for Gemologists or experts in the sector.

MANTIS is the latest diamond tester that works independently or in-conjunction with Gemlogis BLEU a color stone meter with touch sensitive display to further identify the stone type. Tests loose melee,
mounted stones, colored and colorless gemstones within a range of 0.02ct onwards.