Yes, absolutely. In our Montreal workshop, we design fully custom rings. Whether you are starting from an idea, an inspiration photo, or a sketch, our jewelers accompany you through every step, from selecting the stones to 3D modeling and final crafting.

Both are real diamonds, identical in physical, chemical, and optical properties. We offer both options at our workshop.

• Natural diamonds of Canadian origin are ethically mined in the Canadian Far North and offer guaranteed traceability.
• Lab-grown diamonds are created in a controlled environment, making it possible to obtain a stone of the same quality at a price approximately 40% to 60% more accessible.

Yes. All our diamonds (natural or lab-grown) over 0.50 carats come with an independent gemological certificate (GIA, IGI, or Canadamark) in addition to an appraisal certificate for insurance purposes. Furthermore, every Joaillerie St-Onge jewelry piece is backed by a lifetime warranty against manufacturing defects.

Yes, inside engraving for wedding bands (initials, wedding date, short message, etc.) is included complimentary with the purchase of your rings.

Joaillerie St-Onge's production time is between 4 to 6 weeks. This timeframe allows us to craft your custom jewelry with care and perform any size adjustments if necessary. If you need the ring sooner, please contact us to check product availability.

Clean your jewelry regularly with warm water, mild soap, and a small soft-bristled brush. You can refer to our Maintenance Tips page to learn more. We also invite you to visit our boutique once a year for a free stone setting check and ultrasonic cleaning.