Lab Grown Marquise 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 | $2,040 | $1,503 | $741 | $542 | $520 | $535 | $511 | $356 | $661 |
| F-G | $1,303 | $1,073 | $603 | $517 | $499 | $510 | $447 | $410 | $1,210 |
| H-I | - | $1,100 | $1,128 | $624 | $622 | $720 | $668 | $899 | $1,255 |
| J-K | - | - | - | $646 | $686 | $1,028 | $1,093 | - | - |
| L-M | - | - | - | $529 | $555 | - | - | - | - |
| N+ | - | $1,649 | $572 | $497 | $517 | $558 | $536 | $501 | $241 |
By Carat Weight
0.20-0.29
3,921 listings
Avg: £495 GBP/ct
0.30-0.49
65,663 listings
Avg: £579 GBP/ct
0.50-0.74
75,831 listings
Avg: £529 GBP/ct
0.75-0.99
78,073 listings
Avg: £486 GBP/ct
1.00-1.24
342,377 listings
Avg: £467 GBP/ct
1.25-1.49
78,886 listings
Avg: £433 GBP/ct
1.50-1.99
300,363 listings
Avg: £578 GBP/ct
2.00-2.49
362,701 listings
Avg: £504 GBP/ct
2.50-2.99
156,950 listings
Avg: £554 GBP/ct
3.00-3.99
272,902 listings
Avg: £577 GBP/ct
4.00-4.99
103,682 listings
Avg: £664 GBP/ct
5.00-9.99
120,172 listings
Avg: £721 GBP/ct
10.00+
13,574 listings
Avg: £417 GBP/ct
unknown
829 listings
Avg: £700 GBP/ct
Price by Colour & Clarity
| Colour | Clarity | Listings | Avg Price/ct |
|---|---|---|---|
| D-E | FL | 66,400 | £1,521 GBP |
| D-E | I | 41 | £493 GBP |
| D-E | IF | 80,540 | £1,121 GBP |
| D-E | SI1 | 4,731 | £381 GBP |
| D-E | SI2 | 300 | £266 GBP |
| D-E | VS1 | 354,689 | £387 GBP |
| D-E | VS2 | 78,858 | £399 GBP |
| D-E | VVS1 | 287,905 | £553 GBP |
| D-E | VVS2 | 567,510 | £404 GBP |
| F-G | FL | 116 | £972 GBP |
| F-G | I | 19 | £902 GBP |
| F-G | IF | 2,375 | £800 GBP |
| F-G | SI1 | 2,831 | £333 GBP |
| F-G | SI2 | 190 | £306 GBP |
| F-G | VS1 | 147,362 | £372 GBP |
| F-G | VS2 | 32,719 | £380 GBP |
| F-G | VVS1 | 29,103 | £449 GBP |
| F-G | VVS2 | 193,184 | £385 GBP |
| H-I | I | 12 | £936 GBP |
| H-I | IF | 50 | £820 GBP |
| H-I | SI1 | 770 | £498 GBP |
| H-I | SI2 | 104 | £670 GBP |
| H-I | VS1 | 6,029 | £464 GBP |
| H-I | VS2 | 2,532 | £537 GBP |
| H-I | VVS1 | 660 | £841 GBP |
| H-I | VVS2 | 4,835 | £466 GBP |
| J-K | SI1 | 42 | £815 GBP |
| J-K | VS1 | 167 | £512 GBP |
| J-K | VS2 | 23 | £767 GBP |
| J-K | VVS2 | 147 | £482 GBP |
| L-M | VS1 | 146 | £414 GBP |
| L-M | VVS2 | 153 | £395 GBP |
| N+ | I | 171 | £180 GBP |
| N+ | IF | 410 | £1,229 GBP |
| N+ | SI1 | 2,888 | £400 GBP |
| N+ | SI2 | 478 | £373 GBP |
| N+ | VS1 | 47,432 | £386 GBP |
| N+ | VS2 | 17,643 | £416 GBP |
| N+ | VVS1 | 2,203 | £427 GBP |
| N+ | VVS2 | 35,629 | £370 GBP |
| N+ | other | 4,527 | £1,197 GBP |