a little more about our history

expert gemmologue analyse pierres précieuses

David HOFMANN, CARAT DIAMOND EXCHANCE certified gemologist

Carat Diamond

A family history

The CARAT DIAMOND EXCHANGE house has existed for several decades. Thanks to her seriousness, she has established business relationships all over the world, forging close ties with customers and suppliers.
CARAT DIAMOND EXCHANGE assures you of irreproachable quality merchandise selected by people who have the best diplomas in terms of precious stones, GIA for diamonds and AIGS for colored stones.

Made in Switzerland

Our stones have been stored in Switzerland for several decades. Their setting as well as the creation of jewels are realized in our workshop in Switzerland. We are proud to say that our company is Made in Switzerland


Carat Diamond believes that ethical values are important. The mines are located in non-conflict areas (Kimberley Process), and stone cutting is done in workshops that respect workers' rights.


We are able to satisfy all your desires, to realize your projects and to offer you the best service thanks to the competence of our qualified gemologists.

Our expertise

✓ Follow-up and personalized service
✓ Unique cut stones
✓ The availability of our experts
✓ Employees who are passionate about their job

Let's create together the jewel of your dreams

We accompany you in your project to realize your dream jewel!