Lab Grown Marquise Diamond Prices in United Kingdom
Last updated: September 2026
By Carat Weight
Price Distribution
LowHigh
| Colour | FL | IF | VVS1 | VVS2 | VS1 | VS2 | SI1 | SI2 | I |
|---|---|---|---|---|---|---|---|---|---|
| D-E | $2,419 | $1,924 | $863 | $569 | $585 | $592 | $545 | $918 | $1,296 |
| F-G | $2,085 | $1,323 | $729 | $527 | $492 | $527 | $466 | $2,652 | $1,465 |
| H-I | - | $4,222 | $1,247 | $545 | $623 | $912 | $1,357 | $2,559 | $1,682 |
| J-K | - | $1,696 | $1,485 | $2,415 | $1,218 | $1,400 | $1,563 | $1,983 | $2,089 |
| L-M | - | - | - | $719 | $448 | - | $2,493 | $1,229 | - |
| N+ | - | $1,751 | $855 | $670 | $638 | $728 | $672 | $560 | - |
By Carat Weight
0.20-0.29
1,403 listings
Avg: £737 GBP/ct
0.30-0.49
54,733 listings
Avg: £732 GBP/ct
0.50-0.74
74,077 listings
Avg: £734 GBP/ct
0.75-0.99
69,340 listings
Avg: £778 GBP/ct
1.00-1.24
256,597 listings
Avg: £803 GBP/ct
1.25-1.49
92,859 listings
Avg: £681 GBP/ct
1.50-1.99
234,747 listings
Avg: £929 GBP/ct
2.00-2.49
111,322 listings
Avg: £1,284 GBP/ct
2.50-2.99
90,251 listings
Avg: £1,048 GBP/ct
3.00-3.99
108,743 listings
Avg: £847 GBP/ct
4.00-4.99
58,702 listings
Avg: £811 GBP/ct
5.00-9.99
37,996 listings
Avg: £867 GBP/ct
10.00+
7,765 listings
Avg: £572 GBP/ct
unknown
494 listings
Avg: £761 GBP/ct
Price by Colour & Clarity
| Colour | Clarity | Listings | Avg Price/ct |
|---|---|---|---|
| D-E | FL | 44,812 | £1,791 GBP |
| D-E | I | 37 | £960 GBP |
| D-E | IF | 45,344 | £1,424 GBP |
| D-E | SI1 | 2,679 | £404 GBP |
| D-E | SI2 | 229 | £679 GBP |
| D-E | VS1 | 250,947 | £433 GBP |
| D-E | VS2 | 57,120 | £438 GBP |
| D-E | VVS1 | 144,203 | £639 GBP |
| D-E | VVS2 | 354,708 | £421 GBP |
| F-G | FL | 115 | £1,544 GBP |
| F-G | I | 37 | £1,085 GBP |
| F-G | IF | 1,339 | £979 GBP |
| F-G | SI1 | 1,589 | £345 GBP |
| F-G | SI2 | 170 | £1,963 GBP |
| F-G | VS1 | 97,599 | £364 GBP |
| F-G | VS2 | 16,843 | £390 GBP |
| F-G | VVS1 | 14,176 | £540 GBP |
| F-G | VVS2 | 123,906 | £390 GBP |
| H-I | I | 58 | £1,245 GBP |
| H-I | IF | 80 | £3,126 GBP |
| H-I | SI1 | 757 | £1,005 GBP |
| H-I | SI2 | 153 | £1,894 GBP |
| H-I | VS1 | 4,029 | £461 GBP |
| H-I | VS2 | 1,884 | £675 GBP |
| H-I | VVS1 | 643 | £923 GBP |
| H-I | VVS2 | 3,366 | £404 GBP |
| J-K | I | 68 | £1,547 GBP |
| J-K | IF | 21 | £1,255 GBP |
| J-K | SI1 | 643 | £1,157 GBP |
| J-K | SI2 | 153 | £1,468 GBP |
| J-K | VS1 | 200 | £902 GBP |
| J-K | VS2 | 378 | £1,036 GBP |
| J-K | VVS1 | 51 | £1,099 GBP |
| J-K | VVS2 | 172 | £1,788 GBP |
| L-M | SI1 | 11 | £1,846 GBP |
| L-M | SI2 | 40 | £910 GBP |
| L-M | VS1 | 33 | £332 GBP |
| L-M | VVS2 | 11 | £532 GBP |
| N+ | IF | 251 | £1,296 GBP |
| N+ | SI1 | 734 | £497 GBP |
| N+ | SI2 | 86 | £415 GBP |
| N+ | VS1 | 11,771 | £472 GBP |
| N+ | VS2 | 4,258 | £539 GBP |
| N+ | VVS1 | 631 | £633 GBP |
| N+ | VVS2 | 9,519 | £496 GBP |
| N+ | other | 3,175 | £1,294 GBP |