Buy with confidence. At Colonial Gemstones, every Colombian emerald is supported by independent certification and clear sourcing information. You understand what you are buying, where it comes from, and how it has been assessed.
We work with leading gemological laboratories to confirm authenticity, treatment level, and, where possible, origin. You receive clear documentation and guidance at every step.
Certification is an independent report issued by a recognised gemological laboratory.
It confirms key details such as:
• Natural or synthetic status
• Level of clarity enhancement
• Measurements and weight
• Cut and shape
• Opinion on geographic origin when possible
Each report gives you confidence in the stone you are purchasing.
Best suited for high value and collector stones. Known for strong research and origin analysis.
Read moreTraceability is more than a certificate. It is the full story behind the stone.
Our process includes:
• Direct sourcing from trusted Colombian suppliers
• Long term relationships with cutters and exporters
• Review of origin information where available
• Independent laboratory verification
• Matching each stone with its report, images, and measurements
This approach gives you clarity from source to final piece.
We assess each stone before sibmit for certification.
We look at:
• Quality and rarity
• Size and value
• Client purpose, personal, investment, or resale
• Timeframe and budget
You receive a clear recommendation before any lab submission.
We guide you step by step so you understand your options and make the right decision.
Receive expert guidance based on your preferences
A once in a lifetime experience for gem collectors, jewellers, valuers and gemstone enthusiasts.
✔ Visit active emerald mines
✔ Meet miners and master cutters
✔ Learn gemstone grading from experts
✔ Explore Bogotá’s gem district
✔ Small group experience
Trusted by jewellers, gem collectors and valuers from Australia, New Zealand, Europe and Asia.