Published by Prodiam Trading CC · South African diamond education

4 4Cs.co.zaThe Light Study

About

Published by Prodiam. Written to make diamond decisions clearer.

4Cs.co.za exists to help South Africans understand cut, colour, clarity, carat, certificates, and resale before they speak to a buyer or jeweller.

Reviewed under the Light Study method · May 2026

Ask Prodiam Publisher disclosure
High-key studio photograph: round brilliant diamond on white acrylic
Exhibit · About
VerifyReport, inscription, measurements
InspectLight return, tint, inclusions
CompareCut, colour, clarity, carat together
RouteBuy, sell, insure, or value differently

Short answer

Published by Prodiam. Written to make diamond decisions clearer.

4Cs.co.za exists to help South Africans understand cut, colour, clarity, carat, certificates, and resale before they speak to a buyer or jeweller.

Use this rule

Do not judge one C alone. Read the certificate, inspect the actual stone, then decide whether beauty, budget, or resale confidence matters most.

Publisher

4Cs.co.za is published by Prodiam Trading CC. Prodiam is based in Bedfordview, Johannesburg and operates by appointment.

Editorial standard

We explain diamond quality in plain language, separate education from offers, and point readers to recognised sources such as GIA for grading concepts.

Commercial relationship

Prodiam benefits when readers visit its website or contact its team. That relationship is disclosed on every page.

Decision table

Use the details, not a shortcut.

ItemPolicy
OwnerPublished by Prodiam Trading CC
Primary sourceGIA for 4Cs definitions
Business factsProdiam official website and verified internal source file
PricingNo guaranteed buy prices published on 4cs.co.za

Direct answers

Common questions

Is 4Cs.co.za independent?

No. It is a Prodiam-published education site and discloses that relationship.

Does the site sell diamonds directly?

No. The site educates and refers readers to Prodiam.

Can I request a correction?

Yes. Email the Prodiam team with the page and requested correction.

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When to involve a specialist

If there is a real diamond, the next step is a certificate-led conversation.

Bring the grading report, photos, invoices, valuations, and any estate paperwork. The goal is to move from generic advice to a stone-specific view.

Visit Prodiam

Sources used