Understanding our definitive grading dossiers. From comprehensive loose diamond certification to bespoke finished jewelry folios, explore the scientific precision behind every DIF document.
The 3-Fold Diamond Jewelry Report is the quintessential authentication document for high-end retail. Designed to elegantly accompany finished pieces, this compact yet comprehensive folio provides a definitive assessment of mounted diamonds and gemstones.
Reserved for the most magnificent creations, the 4-Fold Edition is an expansive, museum-grade dossier. It provides an exhaustive, stone-by-stone breakdown, detailed mapping, and provenance data, unfolding into a breathtaking presentation of the jewelry's architectural and gemological mastery.
Infrared absorption spectroscopy identifies the precise nitrogen and boron impurities within the crystal lattice, crucial for determining diamond type (Type Ia, IIa, IIb) and detecting synthetic origins.
Super-cooled photoluminescence utilizes deep UV lasers to excite the diamond's atomic structure, revealing hidden defects and exposing advanced HPHT color treatments.
High-magnification darkfield microscopy paired with 3D scanning allows our master gemologists to meticulously plot external blemishes and internal inclusions with absolute accuracy.
Human expertise is only as good as the tools that support it. DIF is equipped with the industry's most sophisticated and sensitive gemological hardware, ensuring flawless screening of CVD and HPHT synthetics.
Produces surface fluorescence images to identify growth patterns indicative of synthetic origins.
Natural diamond screening device measuring exact UV-Vis-NIR absorption spectrums.
Automated 3D non-contact optical scanning for flawless cut, symmetry, and proportion grading.
Identifies inclusions and treatments by analyzing the inelastic scattering of monochromatic light.
Experience cannot be synthesized. Our senior grading team possesses a combined history of over 40 years in the Antwerp and global diamond districts. When you hold a DIF report, you hold the definitive verdict of the world's most seasoned gemological authorities.
Take the next step in securing your diamond's legacy. Verify an existing report, learn more about our heritage, or contact our intake team today.