Can I bring my own diamonds to be set in a custom piece?

Valquère sets only its own IGI-certified lab-grown diamonds in every custom piece it produces. This policy exists for a precise reason: stone quality, cut geometry, and setting tolerances are calibrated together during the design process, so mixing in outside stones would break that chain of verification. A diamond sourced elsewhere carries an unknown grading history, and IGI certification on the finished piece depends on consistent provenance from the start. If you already own a stone you want to use, a custom jeweller who accepts client-supplied material is the more practical route. Where Valquère adds value is in building a piece from scratch around a lab-grown diamond selected to match your brief, whether that means a specific carat weight, colour grade, or setting style. The custom process starts with a consultation, not a catalogue.