Independent certification and advisory for diamonds and fine gemstones.
Private. Objective. Discreet.
Sarah Ravenhill is a certified independent gemologist.
Her work is defined by precision, discretion, and the absence of commercial influence. Every evaluation is conducted according to internationally recognized gemological standards, serving private clients, collectors, and investors who require objective expertise.
Independence is not optional. It is essential.
Diamond grading is a discipline of accuracy, not opinion.
Each stone is assessed independently using internationally accepted grading criteria, without influence from sellers, brokers, or commercial interests.
Precision reveals value.
Integrity preserves it.
Private inquiries only.
Office: +32 460 220 768
Head Office
3401 Dufferin St
North York, ON M6A 2T9
Canada
Phone: +1 332 284 8214