EGP Scientific Reference Series
The Gem Compendium
A reference in gemology according to modern scientific methodology.
Electronic edition released — First Edition 2026
Release Announcement
The electronic edition is now released
From the beauty of the poem to the precision of the microscope… a journey through the sciences of gemstones. The book brings together a poetic composition, modern gemological explanation, and visual documentation — for students, enthusiasts, and professionals in the gemstone and jewellery sector.
Enquire about the electronic edition
Publication Details
- Series
- EGP Scientific Reference Series
- Edition
- First Edition — 2026
- Format
- PDF electronic edition
- Length
- 176 pages
- ISBN
- 978-9948-52-229-4
- Language
- Primarily Arabic, with English gemological terminology and bilingual headings where used
- Copyright
- Copyright © 2026 Eman Galeb Hamza
Authorship & Contributions
- Preparation, verification, documentation & scientific review
- Eman Galeb Hamza
- Poetic composition of the text & scientific participation
- Mustafa Belbachir
- Classification & documentation methodology
- EmanelleGrace Gemological Profile (EGP)
- Design, art direction & execution
- Eman Galeb Hamza
The volume combines a poetic framework with modern gemological explanation, visual documentation, and selected EGP observations.
Inside the Book
- 01
Introduction to gemology, crystal growth, and internal structure
- 02
Diamond: geology, the graphite relationship, cleavage, physical and gemological properties, natural growth indicators, inclusions, rough versus polished, and microscopic indicators
- 03
Emerald and the beryl group, including Green Beryl and Pezzottaite
- 04
Peridot, including mantle context and field specimens from Saudi Arabia
- 05
Corundum: ruby and sapphire geology, inclusions, treatments, synthetics, Verneuil / flux / hydrothermal indicators, and evaluation tools
- 06
Topaz; Turquoise; Pearls and Opals; Tourmaline; Zircon; Spinel
- 07
Laboratory-grown gems and growth methods, including HPHT / CVD diamond and hydrothermal / Verneuil growth
- 08
Gem treatments and diagnostic effects: flux healing, diffusion, irradiation, laser paths, ion implantation, heat, emerald oil/resin treatment, beryllium diffusion, rutile alteration, stress halos, and filling bubbles
- 09
Gemological testing and fraud-detection principles: refractive index, loupe, spectroscopy, stamps and hallmarks, polishing responsibility, and warnings against destructive fire testing
- 10
Field and microscopic archive sections, plus a diamond grading / reference appendix
Availability
The electronic edition has been released. Online purchase is coming soon. Purchase and download will open once payment is activated.
Enquire about the electronic edition