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Independent coloured gemstone laboratory, Bangkok

ICA | GemLab.

Articles credited to ICA | GemLab are prepared by the laboratory's gemologists. Founded in 2016 and headquartered in Bangkok, the laboratory examines coloured gemstones using six advanced techniques and documents its findings in reports.

Crystal Inclusions and Iron-Strain Features in Natural Pink Sapphire
Specimen Observation

Crystal Inclusions and Iron-Strain Features in Natural Pink Sapphire

An unheated vivid pink sapphire reveals crystal inclusions and iron-strain patterns in healed fissures, providing…

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Seeing Double: Inside a Rare Transparent Triplite Gemstone
Specimen Observation

Seeing Double: Inside a Rare Transparent Triplite Gemstone

Transparent faceted triplite represents an exceptionally uncommon specimen in gemological collections. The mineral…

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