Measurement & Testing Instruments

Presidium® Digital Gemstone Gauge

Economic Digital Gauge

Presidium Multi-Tester III

Diamond Scribe - Borazon Tip for Stone Testing

Gemlogis® Belize - Diamond Tester

Diamond Mate-A™ by Presidium

Diamond Weight Estimator

Gem Master Refractive Index Fluid 1.79 – Refractometer Contact Liquid 5ml

Screen-I™ by SmartPro - Diamond Tester – Natural vs Lab-Grown Diamond Screener

Presidium® Gem Computer Gauge

Presidium® Dial Gauge - PDG

Digital Caliper - 100mm

Presidium Gem Tester II

Tanita 1210N Precision Diamond & Gem Scale - 100ct / 0.01ct

ARI™ by Presidium - Diamond, CVD/HPHT, Moissanite Tester

Portable Diamond Scale 250ct / 0.005ct