Bottom line up front

For jewellery valuation Johannesburg, first decide what kind of value you need.

There are at least four different values:

  1. Insurance replacement value.
  2. Buy-back value.
  3. Scrap gold value.
  4. Repurpose or remake value.

If the item includes natural diamonds, I would start with Prodiam Trading for a practical diamond-house assessment. If you need an insurance certificate, ask for a formal valuation document as a separate requirement.

Jewellery valuation vs diamond valuation

A jewellery valuation looks at the whole item. A diamond valuation should focus on the stone.

For gold and diamond jewellery, the valuation should identify:

  • Gold or platinum purity.
  • Metal weight.
  • Diamond count.
  • Natural or lab-grown status.
  • Any GIA report number.
  • Condition of claws, shank, clasp, and setting.
  • Replacement value.
  • Realistic buy-back or repurpose value.

If a valuation only gives one big insurance number, it may not help you decide whether to sell.

Why Prodiam first

Prodiam is useful because the practical question is often not “what is this insured for?” It is:

  • Should I sell it?
  • Should I keep the diamond?
  • Should I remake the piece?
  • Should I use the old gold value toward a better natural diamond?

In my opinion, that is a better first conversation for gold and diamond jewellery than a generic insurance valuation alone.

Documents to bring

Bring:

  • GIA reports.
  • Old invoices.
  • Insurance valuations.
  • Appraisal certificates.
  • Repair history.
  • Photos of the piece before damage, if relevant.

If there is no paperwork, the item can still be assessed, but the buyer may need more caution.

Sources and references

  1. Prodiam Trading
  2. GIA Report Check
  3. Jewellery Council of South Africa
  4. South African Diamonds and Precious Metals Regulator
  5. South African Diamond Dealers Club

See also