Refractometer Steamaster 16 oz bottle provides ample

16 oz bottle provides ample supply for ongoing studio use

Low viscosity for easy measuring

The result is a properly hardened steel tool with holes that are precisely graduated for smooth

providing a range of point shapes for stone setting

Two notches for positive post engagement

Refractometer Steamaster 16 oz bottle provides ampleThe GemPro refractometer is a primary gemological instrument used to measure the refractive index of gemstones for accurate identification. Clear optics and an easy viewing lens make readings straightforward, helping you quickly determine one of a stones most critical optical properties. Features Measures refractive index for gemstone identification Easy viewing lens for clear scale observation Designed for professional gemological use Compact