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.

Microscopic Detail of Rutile in Quartz — A closer view of elongated inclusions and their distribution in the Saudi Arabian rutile quartz specimen, as identified and documented by Eman Galeb Hamza.

Golden-toned Microscopic Features — Golden-toned clusters and darker areas under the photographic illumination. Visible colour describes the image and does not independently establish mineral identity or specimen value.

Multicoloured Microscopic Patterns — Multicoloured areas and lines recorded during microscopy, without assigning a specific optical mechanism or treatment status from the image alone.

Angular and Stepped Features in a Crystalline Specimen — An image showing repeated angular, stepped features and contrasting light and dark regions. The description documents visible morphology without asserting gemstone identity or the cause of these features.

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