Every Gemmacol emerald comes with full documentation — including GIC certification and our own Investment Certificate.
Every emerald sold by Gemmacol is accompanied by our Investment Certificate — a formal document designed to support the stone's value as a long-term asset. It records origin, quality characteristics, chain of custody, and our direct assessment of the stone's investment grade — giving buyers the documentation they need to hold, resell, or transfer with full confidence.
The Gemmacol Investment Certificate is issued without exception for every stone we sell. It is not a summary — it is a comprehensive record: mine origin, quality grade, treatment, and a direct statement of investment suitability from our team of experts.
Colombian emeralds are among the most sought-after coloured gemstones in the world. Scarce, beautiful, and consistently in demand among discerning collectors and high jewellery connoisseurs — a proven refuge of lasting value. The Gemmacol Investment Certificate is the document that formalises that value — and protects it over time.
For clients requiring additional third-party validation for auction, estate, or institutional purposes, internationally recognised laboratory reports are available upon request.
All Gemmacol emeralds are certified by the Instituto Colombiano de Gemología, an independent organization that provides reliable, impartial gemological reports and adds value to the gemstone through its expertise. The ICG certification confirms the authenticity, origin, and quality of each stone, providing clients with a recognised baseline of assurance for every purchase.
The ICG certificate is included with every stone as part of our standard offer — no additional cost, no request required.