Each diamond is unique with its very distinct characteristics! To make the best purchase, you must know all the details of the stone. At St-Onge all our diamonds are sold with a certificate issued by theGia. The GIA (Gemological Institute of America) is the most renowned laboratory in the world for the classification of diamonds and the identification of precious stones. Recognized for their objectivity and expertise, GIA guarantees the integrity and precision of each report issued.

The GIA report gives the complete description of the diamond, including its color, its weight, its dimensions and its cutting style. The GIA number is engraved on the belt of each diamond.

CanadaMark certified natural diamonds are responsibly extracted from Canada's North-West Territories. All mines that are part of the CanadaMark program must comply with the strict environmental regulations of Canada, and many go beyond. CanadaMark is proud of their transparency throughout the mining process. Indeed, all diamonds CanadaMark are subject to independent follow -up at all stages, from the original mine to polished stone. The diamonds CanadaMark promise you purity, responsibility and authenticity.

Each diamond is marked at the laser microphone giving you confidence in its origin and its history.

An appraisal certificate for insurance purposes is offered to you with any jewelry purchase. This certificate describes in detail the purity of the gold, the stone(s) used as well as their weight, clarity and color and finally the replacement value in the event of loss or theft.

The certificate is written by one of our diamond experts with the St-Onge seal. Providing this certificate to your insurance company will give you peace of mind.