Transparent provenance for the modern gem industry
Sri Lanka has a two-thousand-year gemological heritage. Yet gemstone provenance records remain fragmented: transactions on paper chits, transformations undocumented, testing reports disconnected from history. Ceylon Gem Passport brings digital structure and transparency to this critical gap.
How It Works
Sri Lanka holds two millennia of gemological heritage, historically known as Ratna-Dweepa, the Island of Gems. Its alluvial deposits produce world-class corundum, chrysoberyl, and spinel.
Yet provenance documentation remains fragmented. Extraction, lapidary work, and laboratory testing happen across disconnected systems: paper chits at the pithead, transformations without digital records, testing reports orphaned from stone history.
Ceylon Gem Passport unifies this. A single, auditable record follows each stone through its lifecycle: from extraction through transformation to final laboratory findings. The platform distinguishes supplier claims from independently verified data, applies cryptographic integrity, and gives gem holders complete control over public versus private information.
Prasanna S. Disanayake
Founder | Gemologist | Entrepreneur | Technology Professional
Prasanna S. Disanayake is a Sri Lankan gemologist and entrepreneur with a professional background in cybersecurity and enterprise technology. His involvement in the gemstone trade began in 2009, developing a lasting interest in Sri Lanka's coloured gemstones, their characteristics and their place in the country's gem and jewellery industry.
Through Aviory & Co, he works across gemstones and fine jewellery, with an interest in creating greater value from Sri Lankan coloured gemstones. Alongside his entrepreneurial work, his technology career has included software development, DevOps and cybersecurity across enterprise environments, including experience with HSBC and London Stock Exchange Group (LSEG).
Holding a Master of Science in Computer Science and a Postgraduate Diploma in Cyber Security, he is particularly interested in how secure digital technologies can address practical challenges within the gemstone industry.
Ceylon Gem Passport brings these interests together. Founded by Prasanna, the initiative explores digital gemstone documentation, provenance, traceability and lifecycle management, with a focus on improving how gemstone information and supporting evidence are recorded and communicated.
His wider interests include coloured gemstone identification and evaluation, gemological research, responsible sourcing, digital innovation and the continued development of Sri Lanka's gemstone industry.
Academic Qualifications
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Master of Science (MSc) in Computer Science
Wrexham Glyndŵr University
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Postgraduate Diploma (PGD) in Cyber Security
SLIIT
Gemological Education & Training
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Gem Identification and Valuation
Manik Thaksalawa
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Advanced Gem Colour Grading and Marketing
Manik Thaksalawa
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Introduction to Sapphires
SSEF
Where my work and interests meet.
Gemology & Coloured Gemstones
Identification, evaluation and a deeper understanding of Sri Lanka's coloured gemstones.
Digital Provenance & Traceability
Digital documentation, gemstone lifecycle management and responsible sourcing.
Fine Jewellery & Value Creation
Jewellery, design and opportunities within Sri Lanka's gem and jewellery industry.
Cybersecurity & Enterprise Technology
Secure systems, software development and enterprise technology.
Development Principles
Evidence-Based
All claims are supported by documented evidence. We distinguish between supplier assertions and independently verified findings.
Transparent
Complete audit trails and version history ensure full transparency. Users understand the provenance of every piece of information.
Independent
Ceylon Gem Passport is an independent initiative, not affiliated with any laboratory, trader, or commercial entity.
Secure
Cryptographic integrity, role-based access control, and privacy-preserving design protect user data and record authenticity.
User-Controlled
Gemstone holders maintain complete control over which information is public and which remains private.
Open Standards
Built on open protocols and standards to enable future interoperability and prevent vendor lock-in.
Learn More
How It Works →
Understand the platform workflow, from gemstone registration to passport publication.
Standards & Disclosures →
Review technical standards, data models, and platform limitations.
For Businesses →
Organisation setup, team management, and workflow integration for businesses.
Contact & Collaboration →
Get in touch for partnerships, feedback, or contributions to the project.
Important Disclaimer: Ceylon Gem Passport is an independent documentation platform and is not a gemological laboratory, certification body, or independent valuation service. Records created on the platform are supplier declarations and user-provided documentation, not independent scientific assessments.
The platform is not affiliated with SSEF (Swiss Gemmological Institute), NGJA (National Gem & Jewellery Authority), or any other laboratory or regulatory body. Users are solely responsible for the accuracy and legality of information they upload.