Description
Presidium Electronic Refractometer II (Prim II)
Key properties:
- A wide range of measurement: The ability to measure the refractive index (RI) from 1,000 to ~ 3.000, covering most of the known gems on the market.
- High accuracy: It determines the gems in seconds based on the amount of reflected light from the surface of the cut stone.
- Applicability without Ri liquid: Quick and easy testing without clutter and discomfort connected using refractive fluid.
- Innovative software (Windows only): Possibility to eliminate possible imitations of gems by entering known values such as color, hardness and s.g. value.
Limitations:
- Surface measurement: Acknowledgments that the device measures the refraction only on the surface, which can affect the results of materials covered with other materials.
- Diamond and Moissanite distinction: It cannot be used to definitively confirm the identity of diamonds, as some new types of Moissanites may show the refractive index of the diamond on this device. This is just one of the limitations of the refractive index of the light only from the surface layer of the stone.
The product includes:
- Prim II software to refine the identification of gems
- Power supply via USB for convenient use
- Educational material with information about the properties of gems and their origin
Prim II is an ideal helper for every goldsmith, gemologist or gem dealer that requires fast and efficient preliminary Identification and separation of a wide range of gems. Combined with other devices and methods, Prim II can provide an important overview and assistance in the comprehensive evaluation and identification of gems.
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