Research Lab

EGP Research Lab

Living Scientific Research in Gemology

The EGP Research Lab is an evolving scientific platform for documenting established knowledge, examining published evidence, developing research hypotheses, and encouraging disciplined scientific discussion in gemology and related earth sciences. It does not treat all opinions as scientifically equal; evidence, methodology, and reliable references remain the basis of evaluation.

We do not claim to possess every answer. We build knowledge progressively through evidence, critical review, and scientific collaboration.

From My Gemological Archive

Real specimens. Real observations. Original imagery from my gemological work.

Longitudinal yellow inclusion in a treated sapphire under microscopic illumination — An elongated yellow internal inclusion in a treated sapphire specimen, documented as a longitudinal morphological feature under the recorded microscopic illumination. The specific treatment type or inclusion composition is not inferred from appearance alone.

Bleeding-like internal inclusion in a treated ruby under microscopic illumination — An internal inclusion in a treated ruby specimen showing an appearance described as bleeding-like, which is a purely visual description. It does not imply biological bleeding, nor does the form infer a specific treatment mechanism.

Microscopic view of elongated green rutile crystals distributed inside quartz — General microscopic view showing a group of elongated green rutile crystals enclosed within quartz, with a clearly visible linear distribution of the inclusions in the host.

Close-up photomicrograph of an elongated green rutile crystal inside quartz — Closer microscopic detail showing an elongated green rutile crystal within quartz, highlighting the acicular form and the crystalline boundaries of the internal inclusion.

Scientific Status Labels

Established FactPublished EvidenceObservationInterpretationPreliminary HypothesisRequires More EvidenceNot Supported

EGP-RL-001Research in Development

Diamond Fluorescence (فلورسنس الألماس) and the Geological History of Natural Diamond

Main Research Question

Can the type, intensity, and spatial distribution of fluorescence-related defect centers (مراكز العيوب) preserve information about diamond growth, mantle residence (الوشاح الأرضي), thermal history, and geological origin?

Fluorescence in diamond arises from optically active defect centres formed and modified during crystal growth, mantle residence, plastic deformation, and post-growth annealing. This project examines whether those centres carry a readable record of that history.
The scope is limited to natural, untreated diamond. Treated and laboratory-grown material is used only as a comparative control set.

Open Collaboration

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EGP Scientific Reference Series

Founder: Eman Galeb Hamza