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Board index » Gemology Schools, Labs, Research & Appraisal Facilities » GGTL Laboratories

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Barbra Voltaire, FGG
 Post subject: Flux-grown synthetic rubies sold as natural rubies
PostPosted: Wed May 12, 2021 12:41 pm 
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Joined: Sun Oct 16, 2005 12:22 pm
Posts: 21289
Location: San Francisco
The unusual case of a jewel with a large number of flux-grown synthetic rubies sold as natural rubies.
Quote:
A necklace with rather important sizeable rubies was submitted to GGTL Laboratories Liechtenstein with the request to identify treatments and country of origin. The piece was mounted with ≈ 50 stones of high quality and very attractive and saturated red colour; the stones were somewhat included and showed mainly fingerprints and clouds amongst other small and atypical inclusions (Fig 1).
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