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Presidium Refractive Index Meter II

Item# 51-937

Comprehensive gemstone testing unit:
  • Identify diamonds and colored gemstones
  • 0.6 mm probe tip accurately tests stones as small as 0.02 carats
  • Includes protective carrying case
$279.00

PRESIDIUM® Refractive Index Meter II (PRIM II)  is a premium portable desktop device that utilizes the properties of reflectivity accurately verify diamonds, diamond simulants and synthetics, and colored gemstones.

A new generation of refractometer:

Crisp LCD display ◆ Three hours continuous use ◆ USB connectivity for data transfer ◆ Built-in R.I. chart reference ◆ Comprehensive bundled software with R.I. and stone descriptors ◆ Low-battery indicator with auto-shutoff ◆ AC and battery power ◆ One-year manufacturer's warranty


Unlike a traditional refractometer, PRIM II is able to measure the range of refractive index values from 1,000 to ~3,000, therefore covering the commonly known gemstones in the market, including diamonds and moissanite. Testing is fast and easy, without the inconvenience and messy usage of RI liquid. The included software enables the user to further eliminate the list of possible colored gemstones by entering known values such as color, hardness and S.G. value and will return further information on gemstone properties.

PRIM II is powered by one (1) 9V battery (sold separately) or USB (cord and adapter sold separately).

PRIM II is for use with faceted gemstones only.

Customer Reviews

Price
Value
Quality
May not be the best for commercial purposes. Has some few drawbacks (list of possible identities somewhat inadequate). On highly refractive stones (high zircons, diamonds, etc.) sometimes has problem deciding what reading really is, i.e. I know the stone is zircon, not garnet or sphene, yet the PRIM II cannot seem to quite reach a zircon identification. Also, seems to be a better instrument in the first few hours of use...the longer time it is turned on, the wackier it seems to get. Still I'm glad I bought it as I was tired of turning my workspace into an EPA clean-up sit...... (Posted on 4/7/18)
Package Contents: Presidium Refractive Index Meter II, PRIM II CD-Rom, Protective carrying case, User handbook, Warranty card.
Powered9V Batteries (up to 3 hours of continuous use based on alkaline batteries) / USB Powered
BenefitsIdentifies Diamonds, Moissanites, and Gemstones instantly
Height mm(inches)33mm (1.3")
Length mm(inches)140mm (5.5")
Width(inches)80mm (3.15")
Weight (Grams/Pounds)140 (0.50lb)


279.00 In stock
Presidium Refractive Index Meter II 3.7 out of 1 5 based on 1 ratings. 1 user reviews.
worthwhile purchase Review by Rockhead
Price
Value
Quality
May not be the best for commercial purposes. Has some few drawbacks (list of possible identities somewhat inadequate). On highly refractive stones (high zircons, diamonds, etc.) sometimes has problem deciding what reading really is, i.e. I know the stone is zircon, not garnet or sphene, yet the PRIM II cannot seem to quite reach a zircon identification. Also, seems to be a better instrument in the first few hours of use...the longer time it is turned on, the wackier it seems to get. Still I'm glad I bought it as I was tired of turning my workspace into an EPA clean-up sit...... (Posted on 4/7/18)
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