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Now open ICA | GemLab India opened in Surat on 20 October 2026. Now open in Surat

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Head Gemologist

Yenruedee Lhongsomboon.

Yenruedee Lhongsomboon specialises in gemstone identification and origin determination using the laboratory's advanced instrumentation, and oversees day-to-day laboratory operations. Gemstone research and photomicrography are a regular part of the work.

The hidden signature of Paraíba and copper-bearing tourmaline from Ethiopia
Research Paper

The hidden signature of Paraíba and copper-bearing tourmaline from Ethiopia

A study of 69 Paraíba and copper-bearing tourmalines from the new Abuloo deposit in Ethiopia, and the trace element…

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Space Splendor Inclusions within Cobalt Blue Spinel from Mahenge, Tanzania
Specimen Observation

Space Splendor Inclusions within Cobalt Blue Spinel from Mahenge, Tanzania

Cobalt blue spinel from Mahenge Cobalt Blue Spinel 钴蓝尖晶石（钴尖晶）originating from an important spinel deposit in Mahenge…

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