Understanding runs deep.
Geological science. Gemological insight. A thoughtful approach to the decisions ahead.
A new perspective
on the extraordinary.
From the structure of a mineral deposit to the character of a single gemstone, meaningful decisions begin with understanding.
Stratum Gemological provides advisory services across geological research, gemstone assessment, sourcing, and expedition planning. We work with mining organizations, investment teams, and luxury jewelers to define the questions and bring the right evidence into view.
Based in La Quinta, California, our company connects technical inquiry with practical commercial needs. Our role is advisory, supported by specialist input appropriate to each assignment.

Jeanne
Anne Fox.
Chief Executive OfficerJeanne Anne Fox is the CEO of Stratum Gemological.
For company introductions, professional collaborations, and project inquiries, connect with our La Quinta office.
Connect with StratumClarity, at
every stage.
A considered process that keeps your objectives and the available evidence in view.
Ask precisely.
Define the decision, the scope, and the information needed before the work begins.
Examine carefully.
Read the evidence, seek the right specialist input, and make assumptions visible.
Communicate clearly.
Bring findings and limitations together in a form that supports the next step.
Let’s uncover
the possibilities.
A stone, a source, a new opportunity.
Tell us what you have in mind.