In Stock Gemmology Presidium refractive index Meter II Presidium 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
In Stock Testing products for Gold¬Silver Technoflux testing water vials 24 k 00906 €2.36 Acid blister for checking gold in the 24 karat range. To be used in conjunction with the touchstone. Content: 15 ml Warning: intended for professional use only (acid is corrosive). Add to cart
In Stock Testing products for Gold¬Silver Technoflux Testing water vials Ag 00904 €2.36 Reagent glass vial to check the authenticity of silver, to be used together with the touchstone. Content: 15 ml. Warning: intended for professional use only (acid is corrosive). Add to cart
In Stock Testing products for Gold¬Silver TESTING WATER VIALS 14 K TECHNOFLUX 00901 €2.36 Add to cart
In Stock Testing products for Gold¬Silver Testing water vials 18 k technoflux 00902 €2.36 Acid blister for checking gold in the 18 karat range. To be used in conjunction with the touchstone. Content: 15 ml Warning: intended for professional use only (acid is corrosive). Add to cart