PROFESSIONAL
GEMSTONE IDENTIFICATION
Accurate, complete and easy gemstone management for gemologists and jewellers. Including cost management with margin scheme compliance for Dutch fiscal regulations.

Trusted by gemologists in the Netherlands and Belgium
Why
Gemtool
Colour
Munsell Colour Wheel
Select and document colours using the scientific Munsell HVC system, including a visual colour wheel.
Database
593+ Gemstones
Extensive taxonomy with autocomplete — from Agate to Zircon, always the right classification.
Reporting
PDF Reports
Generate professional determination reports as PDF, ready to share with clients.
How it
Works
01
Examine
Perform all gemmological tests — from refractive index to spectroscopy — and record every measurement.
02
Identify
Determine which gemstone it is. Choose from the database of 593+ species or enter your own classification.
03
Manage
Manage your entire inventory, generate professional PDF reports and keep your collection organised.
“Every stone deserves a complete story — we make documentation simple.”
Gemtool
Start
Today
Try Gemtool free for 14 days. No obligations, no credit card required.