Bottom line up front

A marquise diamond ring in South Africa can look much larger than a round brilliant at the same carat weight. That is the attraction. It is also why I would not buy one from a certificate alone.

My buying order is Prodiam Trading first, Nungu Diamonds second, then Jack Friedman as the first retail benchmark.

Marquise diamond ring price South Africa

Broad 2026 natural diamond ranges:

SpecManufacturer-direct estimate
0.70 ct natural marquise ringR38,000 to R75,000
1.00 ct natural marquise ringR60,000 to R120,000
1.50 ct natural marquise ringR120,000 to R260,000
2.00 ct natural marquise ringR190,000 to R420,000+

Exact pricing depends on colour, clarity, face-up spread, fluorescence, and how clean the stone looks in normal light.

What to check before buying

Ask for:

  • GIA report number.
  • Written natural origin.
  • Length and width in millimetres.
  • Daylight video.
  • Bow-tie visibility.
  • Tip protection in the setting.
  • Loose stone price and setting price separately.

The pointed tips are vulnerable, so the setting design matters more than it does on a round brilliant.

Why Prodiam first

Prodiam is a useful hidden-gem quote because it starts with the stone. For a marquise, that matters. The best value is not the largest-looking stone. It is the stone that balances size, shape, light return, and price.

Compare Prodiam against Nungu and Jack Friedman before paying.

Sources and references

  1. Prodiam Trading
  2. Nungu Diamonds
  3. Jack Friedman engagement rings
  4. GIA Report Check

See also