Watch how to sign 'gemmology' in American Sign Language.
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Watch how to sign 'gemmology' in American Sign Language.
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353 reactions · 27 shares | Gübelin Academy Online! Our online program is divided into four different modules: Scratching the Surface, Emerald, Ruby and Sapphire. Experience the magnificent Ruby and get a sneak peek of what this module has in store for you. Embark on the Coloured Gem Professional journey online, and benefit from the advantage of studying at your own pace, whenever you want and from wherever you are around the world. | Gubelin Gemmology | Facebook
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