Lab Grown Cushion Diamond Prices in United Kingdom
As of July 2026, there are 1,166,411 lab grown cushion diamonds available. Prices range from £67 GBP/ct to £21,327 GBP/ct, with an average of £1,007 GBP/ct.
Last updated: July 2026
By Carat Weight
Price Distribution
LowHigh
| Colour | FL | IF | VVS1 | VVS2 | VS1 | VS2 | SI1 | SI2 | I |
|---|---|---|---|---|---|---|---|---|---|
| D-E | $3,133 | $2,465 | $889 | $769 | $622 | $630 | $477 | $792 | $2,820 |
| F-G | $2,614 | $1,305 | $842 | $655 | $590 | $576 | $593 | $1,045 | $2,499 |
| H-I | - | $1,970 | $1,141 | $875 | $864 | $1,028 | $1,352 | $2,662 | $2,839 |
| J-K | - | $1,378 | $1,982 | $1,012 | $1,082 | $1,484 | $2,139 | $4,066 | $4,771 |
| L-M | - | - | - | $812 | $556 | $1,261 | $1,345 | - | - |
| N+ | - | $1,701 | $901 | $777 | $705 | $840 | $924 | $874 | $281 |
By Carat Weight
0.20-0.29
569 listings
Avg: £1,167 GBP/ct
0.30-0.49
14,358 listings
Avg: £1,008 GBP/ct
0.50-0.74
38,236 listings
Avg: £890 GBP/ct
0.75-0.99
41,744 listings
Avg: £850 GBP/ct
1.00-1.24
138,228 listings
Avg: £917 GBP/ct
1.25-1.49
40,871 listings
Avg: £746 GBP/ct
1.50-1.99
175,470 listings
Avg: £987 GBP/ct
2.00-2.49
203,087 listings
Avg: £1,004 GBP/ct
2.50-2.99
127,720 listings
Avg: £1,092 GBP/ct
3.00-3.99
204,718 listings
Avg: £963 GBP/ct
4.00-4.99
80,871 listings
Avg: £1,001 GBP/ct
5.00-9.99
86,782 listings
Avg: £1,305 GBP/ct
10.00+
13,615 listings
Avg: £1,428 GBP/ct
unknown
142 listings
Avg: £1,319 GBP/ct
Price by Colour & Clarity
| Colour | Clarity | Listings | Avg Price/ct |
|---|---|---|---|
| D-E | FL | 23,528 | £2,467 GBP |
| D-E | I | 23 | £2,220 GBP |
| D-E | IF | 30,977 | £1,941 GBP |
| D-E | SI1 | 4,927 | £376 GBP |
| D-E | SI2 | 547 | £624 GBP |
| D-E | VS1 | 253,648 | £490 GBP |
| D-E | VS2 | 47,976 | £496 GBP |
| D-E | VVS1 | 115,750 | £700 GBP |
| D-E | VVS2 | 336,105 | £605 GBP |
| F-G | FL | 133 | £2,058 GBP |
| F-G | I | 31 | £1,968 GBP |
| F-G | IF | 1,459 | £1,027 GBP |
| F-G | SI1 | 2,994 | £467 GBP |
| F-G | SI2 | 311 | £823 GBP |
| F-G | VS1 | 98,646 | £464 GBP |
| F-G | VS2 | 25,082 | £454 GBP |
| F-G | VVS1 | 9,615 | £663 GBP |
| F-G | VVS2 | 92,174 | £516 GBP |
| H-I | I | 21 | £2,236 GBP |
| H-I | IF | 81 | £1,551 GBP |
| H-I | SI1 | 1,032 | £1,065 GBP |
| H-I | SI2 | 326 | £2,096 GBP |
| H-I | VS1 | 7,469 | £680 GBP |
| H-I | VS2 | 2,703 | £809 GBP |
| H-I | VVS1 | 386 | £898 GBP |
| H-I | VVS2 | 3,365 | £689 GBP |
| J-K | I | 106 | £3,757 GBP |
| J-K | IF | 28 | £1,085 GBP |
| J-K | SI1 | 1,063 | £1,684 GBP |
| J-K | SI2 | 266 | £3,202 GBP |
| J-K | VS1 | 879 | £852 GBP |
| J-K | VS2 | 1,073 | £1,168 GBP |
| J-K | VVS1 | 95 | £1,560 GBP |
| J-K | VVS2 | 394 | £797 GBP |
| L-M | SI1 | 26 | £1,059 GBP |
| L-M | VS1 | 119 | £438 GBP |
| L-M | VS2 | 13 | £993 GBP |
| L-M | VVS2 | 77 | £639 GBP |
| N+ | I | 24 | £222 GBP |
| N+ | IF | 491 | £1,339 GBP |
| N+ | SI1 | 3,158 | £727 GBP |
| N+ | SI2 | 612 | £688 GBP |
| N+ | VS1 | 46,287 | £555 GBP |
| N+ | VS2 | 17,489 | £661 GBP |
| N+ | VVS1 | 2,419 | £709 GBP |
| N+ | VVS2 | 26,681 | £612 GBP |
| N+ | other | 5,802 | £1,436 GBP |