A Design and Strategy Agency dedicated to jewelry, watchmaking and accessories.
Certy partners with brands to define their identity, vision and collections.
At the crossroads of strategy, creation and product, we craft coherent, desirable and lasting universes.
Fine Jewelry
Jewelry
Watchmaking
Accessories
Certy operates across diverse creative and industrial sectors, guided by a deep understanding of their codes, expectations and unique constraints.
Each field is approached with the same level of rigor: to create with intention, meaning and coherence.
DOMAINS
EXPERTISE
Certy’s vision is to design objects and collections with accuracy, where concept, material and strategy move forward in coherence.
Creating with restraint, structuring with method and delivering solutions grounded in reality.
Certy’s mission is to define a clear direction for each project in watchmaking, jewelry and fine jewelry; to develop coherent collections, from concept to structure, from design to feasibility; to connect creation, manufacturing and market
objectives in order to ensure products that are both desirable and controlled; and to support brands with precision, method and an independent perspective.
Creation only finds meaning in balance.
The balance that unites intention, technical mastery and market reality.
It is this sense of accuracy that Certy cultivates, with rigor and simplicity.
THE STUDIO
Certy is a design and strategy agency dedicated to jewelry, watchmaking and accessories. Founded by Céline Guilhermet, the studio draws on over twenty years of
experience in creating and structuring collections for French and international brands.
Her career is guided by a constant pursuit of accuracy: creating products where intention, coherence and market relevance align with precision.
Trained over ten years in licensed jewelry design, Céline Guilhermet refined her perspective working with houses such as Cerruti, Christian Lacroix, Thierry Mugler, Nina Ricci, Kenzo and Lacoste. She later joined GL Altesse, where she created and led strong brands, including Les Georgettes, an iconic jewelry concept that became a major success, as well as the Swiss Made brand Anna-Rose.
With Certy, this level of rigor becomes methodology. The agency operates where creation meets strategy, manufacturing and positioning, designing products and collections that are desirable, controlled and faithful to each brand’s identity.