pile of gems, large cut diamond


Although a highly skilled jeweler can be qualified to identify and evaluate gemstones with the naked eye, scientific study is within reach for nearly anyone else to identify an unknown gemstone, or verify the authenticity of a known gemstone. As a nondestructive technique that requires no sample preparation, Raman spectroscopy is the perfect tool to determine the identification of synthetic or natural gemstones, identify impurities, and research the origin of color in gemstones. Raman technology, which can be used on mounted gems and pieces of jewelry, is capable of providing gemstone spectra for all classes, including: borates, carbonates, halides, native elements, oxides, phosphates, silicates, sulfates and sulfides.


i-Raman® Plus

Highly Sensitive, High Resolution Fiber Optic Raman System


Spectral Identification Software

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Application Notes

The benefits of Raman spectroscopy are well recognized for the molecular identification of unknown samples and being used routinely in various applications areas
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This app note by Peter Muller describes his work with micro-Raman spectroscopy for mineral identification in polished rock thin sections using a B&W Tek i-Raman® Plus portable Raman system
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