Certified stones
Centre stones can be supplied with a grading report from a recognised independent laboratory. Where a report exists, we send a copy before you commit to a purchase.
Guidance
Certification Information
What our certificates cover and how to read them.
What a report tells you
Carat weight, colour, clarity, cut grade, measurements, fluorescence and any treatment or laboratory-grown origin. It is a description of the stone, not a valuation.
Natural and lab-grown
We supply both and always disclose which is which, in writing and on the report. The two are never mixed within a single piece without being stated.
Melee and accent stones
Small accent diamonds are not individually certified anywhere in the industry. We record their total weight and quality range per piece.
For any question about this document, write to us — we answer personally.