Refractive Index is one of the most important optical parameters used to identify and authenticate polished precious and semi-precious gemstones. This..
$129.87 Ex Tax: $129.87
Hard Cube Zirconia measuring prism.
Scale range:1.35-1.85.Accuracy: ±0.003,
High quality optical scratch proof glass.
$285.00 Ex Tax: $285.00
Measurement Range: 1.35-1.81RI
High hardness CZ test prism
By advanced optic system,shadow
edge is straight and sharp,easy to ..
$253.00 Ex Tax: $253.00
Reflectance tester for diamonds,moissanites and gemstones.
Identifies diamonds,moissanites and gemstones via its Refractive Index (RI), 1.0000 to 3.0..
$310.00 Ex Tax: $310.00
Digital Gem Refractometer is a nice optical instrument which will give a reading of the refractive index of a clean, flat, well-polished facet to repr..
$318.00 Ex Tax: $318.00