Lab Grown Cushion Diamond Prices in United Kingdom
Last updated: November 2026
By Carat Weight
Price Distribution
LowHigh
| Colour | FL | IF | VVS1 | VVS2 | VS1 | VS2 | SI1 | SI2 | I |
|---|---|---|---|---|---|---|---|---|---|
| D-E | $1,602 | $1,333 | $796 | $607 | $565 | $562 | $459 | $498 | - |
| F-G | $1,532 | $1,256 | $721 | $556 | $522 | $535 | $480 | $539 | $410 |
| H-I | - | $1,766 | $1,219 | $577 | $566 | $642 | $958 | $1,050 | - |
| J-K | - | - | $1,212 | $537 | $760 | $851 | $1,201 | $1,664 | - |
| L-M | - | - | - | $596 | $574 | $588 | - | - | - |
| N+ | $1,523 | $2,027 | $885 | $758 | $731 | $840 | $869 | $907 | $757 |
By Carat Weight
0.20-0.29
416 listings
Avg: £790 GBP/ct
0.30-0.49
14,509 listings
Avg: £898 GBP/ct
0.50-0.74
44,215 listings
Avg: £772 GBP/ct
0.75-0.99
48,853 listings
Avg: £585 GBP/ct
1.00-1.24
243,502 listings
Avg: £506 GBP/ct
1.25-1.49
57,013 listings
Avg: £497 GBP/ct
1.50-1.99
266,834 listings
Avg: £510 GBP/ct
2.00-2.49
285,129 listings
Avg: £669 GBP/ct
2.50-2.99
165,189 listings
Avg: £598 GBP/ct
3.00-3.99
301,900 listings
Avg: £617 GBP/ct
4.00-4.99
148,611 listings
Avg: £584 GBP/ct
5.00-9.99
184,706 listings
Avg: £764 GBP/ct
10.00+
21,063 listings
Avg: £528 GBP/ct
unknown
18 listings
Avg: £1,361 GBP/ct
Price by Colour & Clarity
| Colour | Clarity | Listings | Avg Price/ct |
|---|---|---|---|
| D-E | FL | 47,928 | £1,195 GBP |
| D-E | IF | 59,170 | £994 GBP |
| D-E | SI1 | 8,005 | £342 GBP |
| D-E | SI2 | 741 | £371 GBP |
| D-E | VS1 | 374,781 | £421 GBP |
| D-E | VS2 | 71,974 | £419 GBP |
| D-E | VVS1 | 182,450 | £594 GBP |
| D-E | VVS2 | 466,581 | £453 GBP |
| F-G | FL | 392 | £1,142 GBP |
| F-G | I | 14 | £305 GBP |
| F-G | IF | 2,343 | £937 GBP |
| F-G | SI1 | 4,446 | £358 GBP |
| F-G | SI2 | 346 | £402 GBP |
| F-G | VS1 | 145,371 | £390 GBP |
| F-G | VS2 | 34,403 | £399 GBP |
| F-G | VVS1 | 16,566 | £538 GBP |
| F-G | VVS2 | 139,882 | £414 GBP |
| H-I | IF | 24 | £1,317 GBP |
| H-I | SI1 | 942 | £714 GBP |
| H-I | SI2 | 228 | £783 GBP |
| H-I | VS1 | 12,454 | £422 GBP |
| H-I | VS2 | 3,894 | £479 GBP |
| H-I | VVS1 | 903 | £909 GBP |
| H-I | VVS2 | 6,214 | £430 GBP |
| J-K | SI1 | 353 | £896 GBP |
| J-K | SI2 | 138 | £1,241 GBP |
| J-K | VS1 | 798 | £567 GBP |
| J-K | VS2 | 455 | £635 GBP |
| J-K | VVS1 | 26 | £904 GBP |
| J-K | VVS2 | 444 | £401 GBP |
| L-M | VS1 | 793 | £428 GBP |
| L-M | VS2 | 89 | £438 GBP |
| L-M | VVS2 | 264 | £444 GBP |
| N+ | FL | 68 | £1,136 GBP |
| N+ | I | 180 | £565 GBP |
| N+ | IF | 662 | £1,512 GBP |
| N+ | SI1 | 5,857 | £648 GBP |
| N+ | SI2 | 1,237 | £676 GBP |
| N+ | VS1 | 88,827 | £545 GBP |
| N+ | VS2 | 33,587 | £626 GBP |
| N+ | VVS1 | 5,456 | £660 GBP |
| N+ | VVS2 | 53,203 | £565 GBP |
| N+ | other | 9,469 | £1,242 GBP |