Gem Refractometers

Gem Refractometer Refractive Index Fluid Liquid Oil RI 1.8

This is a dark colored vial containing about 10 grams of Refractive Index Fluid for use with any gem refractometer. Comparable to more expensive chemicals, this one is economical. It works great with any stone up to about 1.80+. Contained in an...

External Monochromatic Yellow Light Gem Refractometer, Gemological

Portable refractometer with easy to read viewer and scratch resistant lense with a rugged metal black or silver case. Measures Refractive Index (RI) from 1.3 to 1.81. 15mm eye piece and polarizing filter. Refractometers are tested for calibration at the...

Monochromatic Light source for Gems Refractometer. Gemstone Gemological Testing

This individual narrow band width(monochromatic) light sourse around 589nm It can be used on almost every gem refractometers out there! No matter GIA brand or generic brands. Simply use it like a flashlight. This listing is for the light source...

Hand Free Desktop LED light Source for gem tools such as Polariscope / Darkfield Loupe etc

This multi-use desktop LED light is ideal for a variety of purposes but is most suited to use with a polariscope or darkfield loupe or gem refractomter. The light is composed of 3 white LED bulbs - this lamp is very bright. Lamp is powered by...

GEMOLOGICAL GEMSTONE GEM REFRACTOMETER BUILT-IN LIGHT

This item is commonly known as Gemstone Refractometer, is the primary and most powerful tool in identifying and authenticating polished precious and semiprecious gemstones and also observing the optical properties and the structure of gemstones...