Diamond education
Are lab-grown diamonds worth it?
Worth it for the right buyer and the right reasons.
By the CTJ Jewellery team, led by founder Greg Ward · Updated September 2026 · Editorial policy
Key facts
- Real diamond, same properties
- Lower price than natural, size for size
- Same hardness: 10 on the Mohs scale
- IGI graded where applicable
- Not an investment
- Natural is valued for rarity
Pros and cons
| Lab-grown | |
|---|---|
| Appearance | Identical to natural |
| Durability | Identical to natural |
| Price | Lower, size for size |
| Rarity | Produced to demand |
| Resale | Not a reason to buy any diamond |
Who is lab-grown best for?
Buyers who want a larger centre stone, higher colour or clarity within a set budget, or everyday pieces such as studs and tennis bracelets.
Who should choose natural?
Buyers for whom origin and geological rarity are part of the meaning of the piece.
Natural diamonds guide