RHG 1.30-1.81 Gemstone Refractometer Jewelry Emerald Zircon Testing Tool With LED Flashlight Double Refractometer Professional

High-concerned chemical : None Measurement Range : 1.30-1.81 Brix Min. Div. : Normal Brix Range : Normal Min. Div. : Normal Measurement Accuracy : ±0.002 Weight : 0.56kg Size : 12x7x4cm Model Number : Gem refractometer

Origin : Mainland China Use : Concentration Certification : CE

RHG 1.30-1.81 Gemstone Refractometer Jewelry Emerald Zircon Testing Tool With LED Flashlight Double Refractometer Professional

Note: The refractive index of diamond is 2.417, so it cannot be measured.

Gem refractometer is the most important tool for measuring gems. It can measure the refractive index of gems nondestructive, quickly and accurately, and determine other optical characteristics of gems.

This product uses high refractive index lead glass as the test prism;

Measuring range: 1.30-1.81,

Accuracy: ± 0.002,

Power supply device: LED light with AA battery;

Equipped with 3ml refractive oil (refractive index 1.78)