Aquamarine & Co | Colour Mechanisms and Enhancements in the Beryl Group

[@satsadhu]

Mr. Stephan is a really competent employee of DGemG in Idar Oberstein.
Just finished a course in advanced gemmological analysis with him.

[@GemAOfficialChannel]

Hi there! Yes, Dr. Stephan is very talented and insightful; we felt very fortunate to benefit from his expertise on the day. Chris @ Gem-A.

[@77RGR77]

It would be excellent to see that Aquamarine pictured in Germany (1910) in full colour and/or the photo converted to colour. Cheers,

[@babydove]

Sir I have question, what if you put emerald Beryl in cedarwood oil will it stop glow? thanks

[@anujkantkaushal3173]

Please provide english captions in this video sir.... Pls pls pls 🙏....

[@anujkantkaushal3173]

Someone pls tell me what is e spectrun and o spectrumand transmission window?pl pls pls pls.... 🌹

[@gemstonephilippines6596]

please do red beryl

[@libraonyx9082]

❤nice Gem