Round lab-grown diamonds
A round cut returns the most light of any shape and suits every setting. Lab-grown stones cost far less per carat, so many buyers choose a larger size or a higher colour.
| Carat | Colour D-E | Colour F-G | Colour H-I |
|---|---|---|---|
| 0.5 ct | £180 | £170 | £140 |
| 0.75 ct | £260 | £230 | £200 |
| 1.0 ct | £350 | £320 | £270 |
| 1.25 ct | £450 | £410 | £350 |
| 1.5 ct | £580 | £520 | £450 |
| 2.0 ct | £820 | £740 | £630 |
| 2.5 ct | £1,100 | £970 | £830 |
| 3.0 ct | £1,400 | £1,250 | £1,050 |
| 4.0 ct | £2,050 | £1,850 | £1,600 |
| 5.0 ct | £2,850 | £2,550 | £2,200 |
Other shapes
Oval · Emerald · Cushion · Princess · Pear · Radiant · Marquise · Heart · Asscher