To detect sophisticated treatments and synthetics, you need the right person using the right equipment.

You need Spectra.

To remain at the forefront of gemmological identification, Spectra has invested in the most accurate, state-of-the-art testing equipment, to expertly identify gem origin, type and treatment.

Spectra Principal Kym Hughes uses these high-precision tools to uncover the cleverest of imitations and superior treatments. During her 30 years in the industry, she has acquired national and international qualifications in gemmology, grading and valuation. Her vast experience and ongoing training have furnished Kym with an impressive understanding of gemstone origin and quality characteristics. This specialist knowledge is not limited to contemporary gems, but also encompasses antique varieties from around the globe.

Latest Technology

Many gemstone laboratories are not equipped with the most advanced technology, meaning they can overlook the more advanced and discreet synthetics and/or treatments.

Spectra is the only gem laboratory in Australia using FTIR, UV-Vis Spectroscopic analysis and a research grade Leica binocular microscope. This enables us to detect even the cleverest imitations and synthetic treatments, which laboratories without state-of-the-art technology can miss. This is especially important because manufacturing and treatment processes are becoming more sophisticated, and require higher calibre equipment and testing.


More about our state-of-the-art equipment

Expertise & Passion

Spectra’s Principal Gemmologist Kym Hughes has over 30 years’ experience, with specialist knowledge in all areas of gemmology, grading and valuation. 

Her extensive qualifications, impressive resume and commitment to excellence have earned her a reputation as one of the country’s premier gem testing and grading authorities.

More about Kym and her qualifications

Unbiased Advice

As an independent gemmological laboratory we have no alliances with buyers, sellers, or insurance agents.

As we do not buy, repair, or sell gemstones or jewellery, our advice is completely unbiased. Our loyalty is always with our clients.

Our Laboratory

Lower Risk

Spectra is equipped with the instrumentation to accurately and delicately analyse gems whilst still in their setting. This is a huge advantage as not all gemmologists have this capability.

With standard testing tools, there is a substantial risk that the stone will have to be removed for assessment, which increases the risk of the gem or setting being damaged.

Depending on the size and type of the setting, our superior equipment can usually test the gem in situ.


Whether you’re in the jewellery or gemstone trade, or maybe you are simply curious to learn more about your gem’s origin and quality characteristics, you can trust Spectra to provide a thorough, accurate and honest assessment.