Certification & Provenance
Every gemstone tells its own story.
At La Marqueuse, authenticity, provenance and quality are verified through internationally recognised gemological standards. Depending on the stone and its characteristics, selected jewellery pieces are accompanied by certificates issued by leading independent institutions, including GIA, HRD Antwerp and IGI.
These documents provide an objective assessment of a gemstone's qualities and confirm the standards to which it has been evaluated.
La Marqueuse Certificate
The La Marqueuse Certificate is not only a guarantee of quality but also a testament to our belief in the highest jewellery standards. The document confirms the authenticity of the stones - individually selected with the utmost care for precision and in compliance with international standards. It’s the essence of our philosophy - combining master craftsmanship with uncompromising attention to detail.
GIA Certificate
The Gemological Institute of America (GIA) has been defining standards of excellence in the jewelry industry for decades. It’s also responsible for the creation of the globally used 4C system - grading diamonds based on Carat, Color, Clarity, and Cut. The GIA certificate is a globally recognized guarantee of an objective, uncompromising gemstone evaluation. Thanks to it, you can be sure that the diamonds and other gemstones in La Marqueuse jewellery are symbols of lasting value and natural origin.
HRD Certificate
The HRD Antwerp Institute is the European authority in gemology. The HRD certificate confirms that your jewellery is made from stones assessed in compliance with the highest standards. For decades, it has been setting the highest norms in diamond classification as well as training future experts in the field.
IGI Certificate
The HRD Antwerp Institute is the European authority in gemology. The HRD certificate confirms that your jewellery is made from stones assessed in compliance with the highest standards. For decades, it has been setting the highest norms in diamond classification as well as training future experts in the field.