Logo Made in Germany JGF – September Hong Kong Jewellery and Gem Fair 2017

A.KRÜSS Optronic GmbH

Booth number: 5F538

About us

Measuring quality - German engineering at its finest!

For more than 200 years, A.KRÜSS Optronic produces high-end instruments for checking and measuring quality of gemstones. Individual solutions and service to ensure customized answers for gemmological determination and quality control is offered. The product portfolio includes completely equipped travel labs, refractometers, microscopes and many other testing instruments.

Well known for precise and reliable measurements, the robust and long-lasting products simplify testing and inspection tasks in field work or production facilities. Intuitive operation and useful extras make the instruments easy to use.

Products and services

A.KRÜSS Optronic offers a complete range of instrumentation for the professional gemmologist. The range includes:

  • Krüss Gem Travel Labs
  • Gemstone Microscopes
  • Gemstone Refractometers
  • Cold Light Sources
  • Gemstone Spectroscopes
  • UV- and Analysis Lamps
  • Binocular Magnifying Eyeglasses and Loupes
  • The Krüss Gemstone Workstation
Gemmologists’ Travel Labs KA52KRS

Gemmologists’ Travel Labs KA52KRS

- A shock-resistant trolley produced by Rimowa. Made of aluminium and with wheels.
- Stereo zoom microscope MSZ5000
- Interactive touchscreen panel for easier use
- Stone holder for set and unset stones
- Gem refractometer with built-in sodium filter and Anderson liquid (RI=1.79 nD)
- Spectroscope with holder and scale illumination
- Polariscope with analyzer, polarizer and conoscope
- Dichroscope HD10
- Battery (approx. 8 hrs.)
- daylight- and UV-lamp (long- und shortwave)

Gemmologists’ Travel Labs KA41KRS

Gemmologists’ Travel Labs KA41KRS

- A shock-resistant trolley produced by Rimowa. Made of aluminium and with wheels.
- Stereo zoom microscope KSW4000-K-W
- Fibre optic light source
- Gem refractometer with built-in sodium- and polarizationsfilter und Anderson liquid (refractive index 1,79 nD)
- Handheld spectroscope 1501 with holder
- Polariskop with analyzer, polarizer und conoscope lense
- Dichroscope HD10
- Conoscope
- UV- and daylight lamp
- Universal AC-DC adaptor
- Power supply 100 – 240 V for global use
- Grading bowl


A.KRÜSS Optronic GmbH
Alsterdorfer Str. 276–278
22297 Hamburg

Phone: +49 40 5143170
Fax: +49 40 51431760

Stefan Wegner
Phone: +49 40 5143170

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