KATHARINE Services
Certificates & Materials
Product-specific disclosures supported by documentation where testing and certification apply.

Official guidance
Clear information,
personal attention.
Product Information
The principal material, purity, stone description, weight and workmanship are stated on the relevant product record, label, certificate or sales document.
Certificates
Eligible stones or jewellery may be accompanied by a report from a qualified laboratory. The original report and the issuing laboratory’s verification channel remain the authoritative reference.
Natural Character
Natural gemstones can contain inclusions, colour zoning and slight differences in shape or tone. These individual characteristics are part of their formation and are not automatically quality issues.