Certificates & Compliance

We keep the documents rather than borrowing badges. Everything below is a scan of a report issued to this company; none of it is a logo we licensed for display.

Material and plating tests

SGS and CTT test reports cover 925 sterling silver composition, plating thickness and nickel release on the finished pieces. They are issued per sample batch, which is why there are several.

Stone certificates

• Lab-grown diamonds ship with an IGI report covering carat weight, colour, clarity, cut and the laser inscription number.
• Moissanite ships with a GRA certificate card stating weight, dimensions and colour grade.
• Lab-grown colour is graded in-house; measurements and a photograph are supplied on request.

If you need a specific laboratory — IGI, GIA or a local appraiser — tell us before production. Re-grading takes additional time and is quoted separately.

Social compliance

The Wuzhou site has been audited under SMETA (Sedex Members Ethical Trade Audit), which covers working hours, wages, health and safety and business ethics. The audit summary is available to wholesale buyers on request.

What we do not claim

We are not a member of the Responsible Jewellery Council, and we do not claim carbon neutrality. Our lab-grown stones avoid mining; our silver and gold are sourced through licensed Chinese refiners. That is the accurate statement, and it is the one we put on the site.

Questions about a specific certificate? Email service@holycome.com with the report number.