Hobbyist or professional gemmologist -
Here you can explore and discover a wide range of high-quality gemmological instruments.

Welcome to A.KRÜSS Optronic. Here you can buy high quality gemmological instruments. Whatever your requirements – you will find everything from tweezers to refractometer.

Would you like to test gemstones and are you looking for the right measuring instruments?
Our devices support gemmologists in testing, checking and evaluating gemstones. Furthermore our measuring instruments are the right choice for inspecting characteristics and properties such as clarity, cut, carat, cut, polish and purity. Our range includes high quality loupes, tweezers, polariscopes, dichroscopes and spectroscopes.

Our stereo microscopes, diamond test devices or refractometers are suitable for the precise determination of gemstones. Experts who want to work regardless of location can create assessments, analyses and gemstone valuations with the necessary precision instruments of our portable laboratories.

Why buy from A.KRÜSS Optronic?
All of our measuring instruments work with high quality optics and meet international standards for examinations and measurements. With us you get measuring devices with many extras: For every gemmological examination we offering extensive specialist information: Various practical tips explain the functionality and use of the devices. These instructions were written by qualified mineralologist Prof. Dr. written by Jochen Schlueter. He is responsible for the permanent collection of the Mineralogical Museum in Hamburg. You always receive attractive special guarantee services for our long-life measuring devices.