Quality, explained.
Put the 4Cs in context. Separate shape from cut quality, and understand why weight alone tells only part of the story.
Read the guide
KNOWLEDGE • PROVENANCE • PERSPECTIVE
A clearer view of
the diamond world.
Understand what defines a diamond. Explore its journey. Make your next conversation a more informed one.
A connected industry
Beyond the sparkle.
Into the substance.
A useful starting point for buyers, jewellers and industry professionals. Bring diamond knowledge, sourcing questions and planning into one considered view.
Provenance, examined.
Learn what a grading report, an origin record and a supply-chain claim each address—and what still needs evidence.
Explore provenanceResearch, connected.
Follow primary sources on grading, traceability and the changing structure of the diamond trade.
Explore the researchFrom question to conversation
A diamond has a story.
Ask for the evidence.
Country of origin, grading and custody are different questions. Start with a practical checklist, then ask the supplier which records support each answer.
Build a better evidence checklistTHE EVIDENCE LENS
01 / Identity & gradingREPORT
02 / Natural or laboratory-grownDISCLOSURE
03 / Origin & chain of custodyPROVENANCE
04 / Supplier & transaction termsDUE DILIGENCE
A framework for questions, not a certification.
Practical tools
Make the assumptions
visible.
Use your own supplier quotes to compare two purchasing scenarios. Review quantity, carat weight, fees and assumed tax, then download a brief for your records.
Your quotes. A clearer comparison.
No live prices. No hidden quality score. Transparent calculations.
The wider ecosystem
Know who does what.
Explore the roles of laboratories, provenance platforms, trading networks and industry initiatives. Listings are informational and do not imply affiliation.