Investing in Gemstones with Complete Transparency

Beyond bespoke jewelry creation, Atelier Grégory now offers an exclusive service dedicated to investment in loose precious stones  unmounted diamonds, sapphires, rubies, or emeralds  all certified by the world’s most renowned gemological laboratories.

Backed by my expertise as a certified gemologist, I guide you through a thoughtful and informed acquisition process, relying on a rigorous selection of gemstones based on the four fundamental Cs:
Carat, Clarity, Color, and Cut,
to which I add a fifth essential criterion: the relevance of the purchase within a legacy-building approach.

Privileged Access to the World’s Diamond Exchanges

Thanks to a direct network with the diamond exchanges of Antwerp, Tel Aviv, Dubai, Hong Kong, and Mumbai, I can source gemstones as close as possible to their producers, bypassing intermediary chains. This short supply chain allows me to offer gemstones under pricing conditions often below Rapaport, the global reference for diamond pricing.

Every stone offered comes with a certification report issued by the world’s most renowned laboratories:

GIA (USA), HRD (Belgium), and Gübelin (Switzerland).

These certificates guarantee the authenticity, quality, and traceability of each stone.

Acquisition, Guidance, and Value Enhancement

Whether you’re looking for an investment gemstone to keep, pass on, or incorporate into a jewelry project, I support you at every step from market trend analysis to potential resale, including sourcing and preservation advice.

A well-chosen stone is a discreet, tangible asset that holds value.
At Galamp, every acquisition becomes a carefully managed process, guided by high standards and full transparency.

Personalized and Confidential Support

Each investment project benefits from discreet, individualized guidance within a trusted framework.
I handle the research, negotiation, securing, and delivery of the gemstones under the best possible conditions — all with full transparency.