If you are reading this, most likely you asked me casually about a gemstone. What it is, what is the origin. Has the gemstone been treated? How much is it worth?

Knowing the identity of a gemstone requires proper tests such as checking the Reflective index (https://www.britannica.com/science/refractive-index), checking the absorption spectrum (https://www.merriam-webster.com/dictionary/absorption%20spectrum) if the gemstone / material is translucent or transparent.

On top of these tests, you would also need to go through some microscopic examination, polariscope, UV light, EDX (https://www.thermofisher.com/blog/microscopy/edx-analysis-with-sem-how-does-it-work/), FTIR (https://www.thermofisher.com/sg/en/home/industrial/spectroscopy-elemental-isotope-analysis/spectroscopy-elemental-isotope-analysis-learning-center/molecular-spectroscopy-information/ftir-information/ftir-basics.html).

One of the ways of determining origin of a gemstone, you need to analyze data acquired from the gemstone using RAMAN spectroscopy (https://www.bruker.com/en/products-and-solutions/infrared-and-raman/raman-spectrometers/what-is-raman-spectroscopy.html) and compare it to an existing accurate database.

Therefore, it is better send the item to the gemological laboratory. Also without proper testing of the gemstone / material, there is no basis to find out what it is worth.

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How to buy gemstones

Buying gemstones or buying gems has always been a fun and exciting hobby. From natural royal blue sapphires, to pigeon’s blood ruby and even to the legendary colour changing alexandrite.

Problem is, you need a lot of knowledge and skill. We have some interesting workshops for you to attend if you are in Singapore. Visit https://www.eventbrite.sg/o/the-gem-museum-9816122209 to check out the latest workshops at The Gem Museum, Singapore. OR visit https://www.eventbrite.sg/o/far-east-gem-institute-9841105879 to check out our latest classes at Far East Gemological Institute.

You can also visit https://www.fareastgemsjewellery.com to view a large collection of gemstones and purchase them online!

The 3 main areas to look out for when buying gemstones are

1.  Value

2. Quality

3. Authencity

These 3 main areas are all equally important and once you are able to achieve the 3, you should be able to buy gemstones successfully. You can learn more about them at our workshop at The Gem Museum, called “How to buy gemstones”.