Lab Grown Cushion Diamond Prices in United Kingdom
As of June 2026, there are 1,017,134 lab grown cushion diamonds available. Prices range from £67 GBP/ct to £22,547 GBP/ct, with an average of £1,119 GBP/ct.
Last updated: June 2026
By Carat Weight
Price Distribution
LowHigh
| Colour | FL | IF | VVS1 | VVS2 | VS1 | VS2 | SI1 | SI2 | I |
|---|---|---|---|---|---|---|---|---|---|
| D-E | $4,185 | $2,807 | $961 | $802 | $611 | $590 | $474 | $763 | $2,820 |
| F-G | $2,266 | $1,491 | $809 | $568 | $541 | $537 | $504 | $1,066 | $2,499 |
| H-I | - | $2,077 | $1,295 | $826 | $780 | $1,038 | $2,074 | $3,608 | $2,230 |
| J-K | - | $1,378 | $2,168 | $1,066 | $1,183 | $1,516 | $2,221 | $4,854 | $6,982 |
| L-M | - | - | - | $1,049 | $456 | $1,261 | $1,345 | - | - |
| N+ | - | $1,569 | $1,043 | $817 | $754 | $862 | $1,057 | $1,259 | $226 |
By Carat Weight
0.20-0.29
454 listings
Avg: £1,204 GBP/ct
0.30-0.49
10,538 listings
Avg: £1,074 GBP/ct
0.50-0.74
29,953 listings
Avg: £1,006 GBP/ct
0.75-0.99
37,732 listings
Avg: £901 GBP/ct
1.00-1.24
123,890 listings
Avg: £1,023 GBP/ct
1.25-1.49
35,107 listings
Avg: £712 GBP/ct
1.50-1.99
154,687 listings
Avg: £1,089 GBP/ct
2.00-2.49
196,741 listings
Avg: £1,018 GBP/ct
2.50-2.99
122,285 listings
Avg: £1,155 GBP/ct
3.00-3.99
176,899 listings
Avg: £1,067 GBP/ct
4.00-4.99
52,151 listings
Avg: £1,274 GBP/ct
5.00-9.99
66,417 listings
Avg: £1,809 GBP/ct
10.00+
10,241 listings
Avg: £1,461 GBP/ct
unknown
39 listings
Avg: £1,406 GBP/ct
Price by Colour & Clarity
| Colour | Clarity | Listings | Avg Price/ct |
|---|---|---|---|
| D-E | FL | 10,043 | £3,295 GBP |
| D-E | I | 23 | £2,220 GBP |
| D-E | IF | 22,002 | £2,210 GBP |
| D-E | SI1 | 5,237 | £373 GBP |
| D-E | SI2 | 520 | £601 GBP |
| D-E | VS1 | 249,398 | £481 GBP |
| D-E | VS2 | 51,009 | £465 GBP |
| D-E | VVS1 | 82,626 | £757 GBP |
| D-E | VVS2 | 307,903 | £632 GBP |
| F-G | FL | 63 | £1,784 GBP |
| F-G | I | 31 | £1,968 GBP |
| F-G | IF | 1,165 | £1,174 GBP |
| F-G | SI1 | 2,951 | £397 GBP |
| F-G | SI2 | 329 | £840 GBP |
| F-G | VS1 | 97,390 | £426 GBP |
| F-G | VS2 | 24,749 | £423 GBP |
| F-G | VVS1 | 7,285 | £637 GBP |
| F-G | VVS2 | 83,450 | £447 GBP |
| H-I | I | 28 | £1,756 GBP |
| H-I | IF | 79 | £1,635 GBP |
| H-I | SI1 | 872 | £1,633 GBP |
| H-I | SI2 | 266 | £2,841 GBP |
| H-I | VS1 | 5,653 | £614 GBP |
| H-I | VS2 | 2,210 | £817 GBP |
| H-I | VVS1 | 334 | £1,019 GBP |
| H-I | VVS2 | 3,057 | £651 GBP |
| J-K | I | 78 | £5,498 GBP |
| J-K | IF | 28 | £1,085 GBP |
| J-K | SI1 | 820 | £1,749 GBP |
| J-K | SI2 | 227 | £3,822 GBP |
| J-K | VS1 | 714 | £932 GBP |
| J-K | VS2 | 853 | £1,194 GBP |
| J-K | VVS1 | 98 | £1,707 GBP |
| J-K | VVS2 | 336 | £839 GBP |
| L-M | SI1 | 26 | £1,059 GBP |
| L-M | VS1 | 25 | £359 GBP |
| L-M | VS2 | 13 | £993 GBP |
| L-M | VVS2 | 38 | £826 GBP |
| N+ | I | 19 | £178 GBP |
| N+ | IF | 332 | £1,235 GBP |
| N+ | SI1 | 1,916 | £832 GBP |
| N+ | SI2 | 353 | £991 GBP |
| N+ | VS1 | 24,070 | £593 GBP |
| N+ | VS2 | 9,743 | £679 GBP |
| N+ | VVS1 | 1,412 | £821 GBP |
| N+ | VVS2 | 13,893 | £643 GBP |
| N+ | other | 3,467 | £1,426 GBP |