100% Natural by Nassi

Purveyors of Find Natural Colored Gemstones spared from any form of treatment other than our exceptional lapidary techniques. Specializing in superb Rubies, Sapphires & Emeralds as well as fine collector Spinels, Tourmalines, Garnets and Alexandrites.

David Nassi
 18 East 48th Street 21st Floor New York, NY 10017 USA
 +1 212 371 1177


Emeralds - Rubies - Sapphires - Coloured Stones - Antique jewellery
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GemGenève is the main partner of the Digital Jewelry Week in October 2024! Student? Young Designer?

Enter contest and your piece will maybe be produced and showcased at the next GemGenève show!


Are you a Designer or an Emerging talent? Do you have interesting pieces to showcase to a wide audience?

We are seeking new talents for our next edition in May 2025. Should you be interested in exhibiting: