AT A GLANCE
– Cubic zirconia (CZ) prism with scale range: 1.35-1.85
– Professional optical design with clear shadow boundaries
– Built-in quasi-monochromatic LED light source with a wavelength of about 589.5nm
– Dual power supply: two AAA batteries or external wide-voltage power adapter (input voltage 100V-240V, output voltage DC 3V)
– Comes with a polarizer and 2ml of refractive index liquids (1.785±0.005 RI)
$345.00 – $425.00
Refractive index is one of the most stable properties of gems. Refractometers can accurately measure the refractive index value, birefringence value, optical characteristics and other properties of gems, providing key evidence for gemstone identification.
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