In Stock Gemmology Presidium refractive index Meter II 09028 €490.00 The refractometer made by Presidium can measure the rate of light refracted through gemstones such as diamonds or moissanites. Wide range of RI (refractive index) values from 1000 to 3000. Add to cart
New In Stock Gemmology Presidium Sam Diamond and Moissanites Tester 02272 €398.90 Presidium tester with highly sensitive thermoelectric probe tip to identify diamond against wider range of moissanites, especially the new "low conductivity moissanite" and other diamond simulants. Add to cart