Lab Grown Marquise Diamond Prices in United Kingdom
As of July 2026, there are 940,218 lab grown marquise diamonds available. Prices range from £100 GBP/ct to £19,202 GBP/ct, with an average of £914 GBP/ct.
Last updated: July 2026
By Carat Weight
Price Distribution
LowHigh
| Colour | FL | IF | VVS1 | VVS2 | VS1 | VS2 | SI1 | SI2 | I |
|---|---|---|---|---|---|---|---|---|---|
| D-E | $2,480 | $1,917 | $926 | $647 | $650 | $645 | $623 | $1,487 | $1,402 |
| F-G | $3,226 | $1,343 | $805 | $613 | $573 | $590 | $524 | $2,385 | $1,523 |
| H-I | - | $1,881 | $992 | $577 | $622 | $1,042 | $1,395 | $2,587 | $1,376 |
| J-K | - | $1,696 | $1,400 | $2,175 | $1,729 | $1,482 | $1,616 | $2,010 | $2,777 |
| L-M | - | - | - | - | $491 | - | $2,493 | $1,210 | - |
| N+ | - | $1,754 | $937 | $806 | $726 | $879 | $719 | $583 | - |
By Carat Weight
0.20-0.29
1,198 listings
Avg: £810 GBP/ct
0.30-0.49
45,110 listings
Avg: £835 GBP/ct
0.50-0.74
74,611 listings
Avg: £829 GBP/ct
0.75-0.99
66,066 listings
Avg: £841 GBP/ct
1.00-1.24
209,653 listings
Avg: £863 GBP/ct
1.25-1.49
61,444 listings
Avg: £652 GBP/ct
1.50-1.99
172,259 listings
Avg: £1,071 GBP/ct
2.00-2.49
85,625 listings
Avg: £1,479 GBP/ct
2.50-2.99
59,124 listings
Avg: £767 GBP/ct
3.00-3.99
82,936 listings
Avg: £940 GBP/ct
4.00-4.99
39,984 listings
Avg: £918 GBP/ct
5.00-9.99
34,299 listings
Avg: £958 GBP/ct
10.00+
7,388 listings
Avg: £661 GBP/ct
unknown
521 listings
Avg: £952 GBP/ct
Price by Colour & Clarity
| Colour | Clarity | Listings | Avg Price/ct |
|---|---|---|---|
| D-E | FL | 28,868 | £1,952 GBP |
| D-E | I | 35 | £1,104 GBP |
| D-E | IF | 33,690 | £1,509 GBP |
| D-E | SI1 | 2,154 | £491 GBP |
| D-E | SI2 | 209 | £1,171 GBP |
| D-E | VS1 | 200,579 | £511 GBP |
| D-E | VS2 | 39,451 | £508 GBP |
| D-E | VVS1 | 109,219 | £729 GBP |
| D-E | VVS2 | 304,935 | £509 GBP |
| F-G | FL | 65 | £2,540 GBP |
| F-G | I | 39 | £1,199 GBP |
| F-G | IF | 1,036 | £1,057 GBP |
| F-G | SI1 | 1,320 | £413 GBP |
| F-G | SI2 | 168 | £1,878 GBP |
| F-G | VS1 | 69,757 | £451 GBP |
| F-G | VS2 | 14,346 | £464 GBP |
| F-G | VVS1 | 9,804 | £634 GBP |
| F-G | VVS2 | 85,514 | £483 GBP |
| H-I | I | 44 | £1,084 GBP |
| H-I | IF | 51 | £1,481 GBP |
| H-I | SI1 | 740 | £1,099 GBP |
| H-I | SI2 | 187 | £2,037 GBP |
| H-I | VS1 | 2,843 | £490 GBP |
| H-I | VS2 | 1,439 | £820 GBP |
| H-I | VVS1 | 230 | £781 GBP |
| H-I | VVS2 | 2,018 | £454 GBP |
| J-K | I | 56 | £2,186 GBP |
| J-K | IF | 21 | £1,335 GBP |
| J-K | SI1 | 473 | £1,272 GBP |
| J-K | SI2 | 140 | £1,583 GBP |
| J-K | VS1 | 131 | £1,361 GBP |
| J-K | VS2 | 328 | £1,167 GBP |
| J-K | VVS1 | 58 | £1,102 GBP |
| J-K | VVS2 | 88 | £1,713 GBP |
| L-M | SI1 | 11 | £1,963 GBP |
| L-M | SI2 | 21 | £952 GBP |
| L-M | VS1 | 21 | £387 GBP |
| N+ | IF | 261 | £1,381 GBP |
| N+ | SI1 | 768 | £566 GBP |
| N+ | SI2 | 95 | £459 GBP |
| N+ | VS1 | 12,054 | £572 GBP |
| N+ | VS2 | 4,342 | £692 GBP |
| N+ | VVS1 | 561 | £737 GBP |
| N+ | VVS2 | 9,562 | £634 GBP |
| N+ | other | 2,486 | £1,389 GBP |