Lab-grown diamonds · Australia-wide
Lab-grown diamond prices in Australia
Real starting prices, and what moves them.
By the CTJ Jewellery team, led by founder Greg Ward · Updated September 2026 · Editorial policy
Key facts
- Stud pairs: $690 (0.50ct TDW), $1,490 (1.40ct) and $1,995 (2.00ct)
- Tennis bracelets from $2,700 (2.50ct TDW)
- Pendants from $390 (0.50ct)
- Engagement ring settings from $2,200
Lab-grown diamond price list
Prices in Australian dollars. TDW is total diamond weight.
| Piece | Size | From |
|---|---|---|
| Stud earrings | 0.50ct TDW | $690 |
| Stud earrings | 1.40ct TDW | $1,490 |
| Stud earrings | 2.00ct TDW | $1,995 |
| Tennis bracelet | 2.50ct TDW, 14K gold | $2,700 |
| Solitaire pendant | 0.50ct | $390 |
| Solitaire pendant | 0.70ct | $690 |
| Solitaire pendant | 1.00ct | $990 |
| Engagement ring setting | Diamond priced separately | $2,200 |
What affects the price of a lab-grown diamond?
Carat weight, cut, colour, clarity and shape, just like a natural diamond. Metal choice and design complexity also matter for finished jewellery.
Why are lab-grown diamonds cheaper than natural?
They can be grown predictably and in a much shorter time, so they sit at a lower price size for size. Natural diamonds are finite and valued for their rarity.
How do you compare lab-grown prices fairly?
Compare like for like: the same grades, cut quality, metal, craftsmanship, warranty and aftercare. Two diamonds with the same report can look very different, so compare them side by side.