old gemstone blogs

You may not know this about me, but I love sharing information about gemstones... writing about them here lets me share information that will hopefully help you become a more informed gemstone buyer.

Hope you enjoy reading these blogs!

Sally x

Do you know what a coated gemstone is?

Posted on


A tricksy little number to try and photograph… but if you look carefully you may be able to see a metallic sheen on the pavilion facets...

topaz cvd pavilion


topaz cvd1

This topaz has a coating applied to the pavilion facets by a process called chemical vapour deposition (CVD) so that when you look into the stone from the top it displays additional colours. The same treatment is used on quartz and these stones are sold as Mystic quartz or topaz. This coating can be scratched so they need to be handled with care!

topaz cvd side

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