Digital R.I. 1.270 - 3.094

  • Untill now the gemmological refractometer was the only possibility to determine the refractive index (R.I.) of faceted stones between 1.3 and 1.8.
  • A brand new instrument has been developed by GemControl - the GemMeter - for digital reading the refractive index (R.I.) up to a value of 3.094.
  • Designed and produced for measuring the R.I. of gemstones above 1.8 (the max reading of a standard refractometer).
  • Can also be used for reading the refractive index of gemstones between 1.3 and 1.8.
  • The GemMeter is the first and only instrument on the market that can measure the exact refractive index for gemstones above 1.8. The "reflectometer" gives only an indication.
  • Very good instrument for fast determination of the R.I. of a group of gemstones.
  • Digital infrared instrument with 2 x 16-digit LCD display.
  • Measures the R.I. and displays all possible gemstones with comparable values (from a database).
  • No light source or refractive index liquid is necessary. The refractive index of stones with very small - well polished - facets (down to 2 mm diameter) can be determined.
  • This brand new instrument is the best complimentary to a refractometer.
  • Compact size of 8 x 15 x 3 cm, 9V battery-powered (no power supply). The ideal device for gem buying trips.
  • Now with color input!

€ 790,-
excl. shipping cost.


  • Order: via e-mail or our website
  • Payment: in advance / Bank transfer
  • Delivery: after payments received, quick
  • Shipping cost: in EU € 20,00 out of EU the arising expenses.
  • As defined in UStG. for 'small businesses' no VAT applies.

Available directly from the constructor and inventor.

Appearance and technical specifications may vary.
Errors excepted.