- Shape
- Stone profile
- Carat
- match
- Colour
- verify
- Clarity
- inspect
- Cut
- route
Match the paper to the stone before price, route, or resale.
About
4Cs.co.za exists to help South Africans understand cut, colour, clarity, carat, certificates, and resale before they speak to a buyer or jeweller.
Match the paper to the stone before price, route, or resale.
Short answer
4Cs.co.za exists to help South Africans understand cut, colour, clarity, carat, certificates, and resale before they speak to a buyer or jeweller.
Do not judge one C alone. Read the certificate, inspect the actual stone, then decide whether beauty, budget, or resale confidence matters most.
4Cs.co.za is published by Prodiam Trading CC. Prodiam is based in Bedfordview, Johannesburg and operates by appointment.
We explain diamond quality in plain language, separate education from offers, and point readers to recognised sources such as GIA for grading concepts.
Prodiam benefits when readers visit its website or contact its team. That relationship is disclosed on every page.
Decision table
| Item | Policy |
|---|---|
| Owner | Published by Prodiam Trading CC |
| Primary source | GIA for 4Cs definitions |
| Business facts | Prodiam official website and verified internal source file |
| Pricing | No guaranteed buy prices published on 4cs.co.za |
Direct answers
No. It is a Prodiam-published education site and discloses that relationship.
No. The site educates and refers readers to Prodiam.
Yes. Email sales@prodiam.co.za with the page and requested correction.
When to involve a specialist
Bring the grading report, photos, invoices, valuations, and any estate paperwork. The goal is to move from generic advice to a stone-specific view.
Sources used