Diamond testers are used to quickly and easily distinguish diamonds from other natural stones and imitations or to separate natural diamonds from synthetic diamonds. The SmartPro Reader I is a test device that was primarily developed to distinguish between diamonds and the diamond imitation moissanite (silicon carbide). In addition, the device separates diamond imitations such as zirconia, YAG, GGG and other colorless natural stones, such as colorless sapphires and topazes. The SmartPro Screen I device was designed exclusively for diamond tests. It also distinguishes some natural diamonds (Ia and Ib diamond types) from synthetic diamonds from the laboratory.
Feature gem test equipment
With the SmartPro Reader I (picture right), the tip of the measuring probe is placed at right angles on a clean stone surface for the measurement. In the case of set stones, the measuring probe is placed in such a way that no metal part of the piece of jewelery touches the measuring probe. There is a small metal tray with indentations for loose stones. This must also be held or touched by hand for the measurement process. The measurement result appears on the LCD of the tester. It simultaneously checks the electrical and thermal properties of the stones. Moissanite is a good conductor of electricity and can therefore be distinguished from diamonds.
The SmartPro Screen I device (pictured left) belongs to the new generation of test devices. They help to differentiate between natural and colorless synthetic diamonds based on UV transmittance. Synthetic diamonds have a different transmittance or absorption than natural diamonds. When exposed to UV light, the different types of diamond absorb different amounts of UV light.
Do you want to read more?
If you are looking for more specialist information, order the white paper “Edelstein test devices”. The following topics, for example, are described in the specialist publication:
- Distinguishing between diamonds and the diamond imitation moissanite (silicon carbide)
- Functionality of different test devices
- Practical tip: Which test device to use for which stones?
- Measure thermal and electrical properties
- Distinguishing between colorless gemstones, precious stones and artificial stones
- Distinguishing diamonds from imitation diamonds and other colorless stones
- Detect zirconia, GGG, YAG, fabulite, synthetic spinel or glass
- Recognize Type IIa and Type IIb diamonds
- UV absorption of natural and synthetic colorless gem diamonds
- Identify HPHT syntheses or CVD diamonds
The whitepaper was produced in collaboration with Prof. Dr. Jochen Schlueter wrote. a qualified mineralogist in charge of the permanent collection on display at the Mineralogical Museum in Hamburg.
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