Color Grading of gemstones 

Gem LabTeam

2017-08-01 02:21:49

The origin of colours of gemstones have usually been well studied. However colour grading of gemstones still relies heavily on personal experience and the availability of standard set. In our research we focus on an objective method for "measuring" colour in an objective and accurate way which can be communicated between individuals. The relationship between chemical, physical properties and colour (hue, saturation and luminosity) will be established on selected gemstones, namely emerald, tanzanite, tsavorite and aquamarine etc.