Help to screen out Type IIa diamonds likely to be synthetic diamonds
Advanced technology that measures a diamond’s UV light transmittance ability
2 colour coded (blue/red) indicator light bars to give a low or high reading of UV light absorption with blue light indicating Natural Diamond and red light indicating Type IIa Diamond
Tests on diamonds within a range in dimension from 2 mm in width and up to 6mm in height (approx. 0.1 to 10 carat size)
Tests on polished diamonds of popular cuts such as brillaint round cut, emerald cut, baguette cut, etc
Can be used on both loose and mounted diamonds (on jewelry with open-back setting)
For use on colorless diamonds from D Color down to J Color