Features
Everything you need for professional gemstone identification, in one clear tool.
Documentation
11 Determination Tabs
From colour to conclusion — every aspect of your gemstone recorded in one clear form.
Colour
Munsell Colour Wheel
Select and document colours using the scientific Munsell HVC system, including a visual colour wheel.
Optics
Spectroscope Visualisation
Interactive spectroscope with clickable absorption bands for precise optical documentation.
Calculation
Hydrostatic Method
Automatic specific gravity calculation from weight in air and water, corrected for water temperature.
Quality
GemWorld Grading
Internationally recognised grading system for colour, clarity and cut of gemstones.
Reporting
PDF Reports
Generate professional determination reports as PDF, ready to share with clients.
Database
593+ Gemstones
Extensive taxonomy with autocomplete — from Agate to Zircon, always the right classification.
Management
Photos & Certificates
Upload photos per stone, register certificates and keep your complete collection organised.
Financial
Pricing & Margin Scheme
Cost management with purchase, sale and margin calculation according to Dutch fiscal regulations.
Colour
Munsell Colour Wheel
The Munsell colour system is the international standard for colour classification in gemmology. Gemtool offers an interactive colour wheel to precisely record Hue, Value and Chroma — visually and scientifically supported.
Optics
Spectroscope Visualisation
Document absorption bands with a click on the interactive spectrum. Add wavelength and intensity for a complete optical record that matches your physical observations.
Financial
Pricing & Margin Scheme
Manage purchase and sale prices with automatic margin calculation according to the Dutch margin scheme. Ideal for dealers who want to work fiscally correct without complex calculations.