Whether you are an amateur or professional gemmologist -
in our store you will find everything you need for gemstones
from tweezers to refractometers

Welcome to A.KRÜSS Optronic. Here you can buy gemmological quality instruments.

Would you like to test gemstones and are you looking for the right measuring instruments?
Our devices support gemmologists in testing, examining 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. For gemmologists who want to work on the move, we offer a fully equipped mobile gem laboratory.

Why buy from A.KRÜSS Optronic?
All our measuring instruments use high-quality optics and meet international standards for investigations and measurements. We provide you with measuring instruments with many extras: we also supply specialist information for every gemmological investigation: Various practical tips explain how the devices work and how to use them. 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.