By Smartclean | 29 March 2023 | 0 Comments
What is the method to differentiate between lab-grown and natural gemstones?
What is the method to differentiate between lab-grown and natural gemstones?
The most reliable method to differentiate between lab-grown and natural gemstones is through chemical and physical testing, including the following methods:
1) Color and appearance: Lab-grown gemstones may have more perfect color and fewer inclusions because they are grown in a controlled environment, unlike natural gemstones that may be affected by weather, climate, and other natural factors. However, some synthetic gemstones may have added colorants, so relying solely on color and appearance may not be enough to identify authenticity.
2) Hardness: The hardness of lab-grown gemstones may be lower than that of natural gemstones because some chemical substances may be added during the growth process. Therefore, testing their hardness using a hardness testing pen or a Mohs hardness scale can help distinguish between genuine and fake.
3) Refractive index and luster: Testing the refractive index and luster of gemstones using a refractometer or a stone instrument can determine whether the gemstone is real or synthetic because the refractive index and luster of gemstones are usually unique.
4) Infrared spectroscopy: Measuring the infrared spectrum of gemstones using an infrared spectrometer can determine their chemical composition and identify whether the gemstone is synthetic.
In summary, identifying the authenticity of gemstones requires multiple methods, and it is best to have them identified by a professional gemstone appraiser.
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