Ann Gems Gemstone Research Institute is devoted to advancing the understanding of gemstones, from the conditions under which they form deep within the Earth to the properties that make each one distinct.
We bring together careful observation, established gemological technique and modern analytical methods. Whether the subject is diamond, ruby, sapphire, emerald or a rarer species, our approach is the same: measure precisely, document thoroughly and report honestly.
We explore the formation, structure and properties of gemstones using proven scientific methods.
Gemological tools and laboratory techniques are applied to deliver precise, repeatable observations.
We hold to strict ethical standards so that every finding is transparent and trustworthy.
Our work considers gemstones from deposits around the world and serves an international community.
Observations are made under controlled conditions and checked against reference standards.
We report what the evidence supports, and we say so plainly when it is inconclusive.
We welcome work with researchers, students, the trade and collectors who share our curiosity.
We begin by understanding the stone, its background and the questions you would like answered.
The stone is measured, examined under magnification and tested with the methods suited to it.
Results are explained clearly, including what the evidence supports and where it is inconclusive.
Our leadership is driven by a commitment to excellence, careful method and scientific advancement, shaping the direction of the institute and the standards it works to.
Nancy Ann Rollinson
Chief Executive Officer
“The clarity of their reporting stood out. Every observation was explained, and where the evidence was inconclusive they said so plainly.”
Geologist
“Working with the institute deepened our understanding of coloured stone origin. Their reference work and attention to detail are excellent.”
Gemstone Consultant
“Their inclusion mapping gave us a far better picture of the rough before any cutting decisions were made.”
Lapidary & Cutter
“They helped us understand exactly what we had, from treatment history to quality. Professional, careful and easy to work with.”
Jewellery Brand Owner
“A thoughtful, methodical team. Their approach to spectroscopy and documentation makes them a valuable research partner.”
Research Scientist
Advancing the understanding of gemstones through science, precision and innovation, from their formation deep within the Earth to the finished stone.
© 2026 Ann Gems Gemstone Research Institute. All rights reserved.
