Natural 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 | $26K | $15K | $15K | $14K | $13K | $12K | $9,479 | $7,179 | $5,431 |
| F-G | $2,528 | $12K | $11K | $15K | $11K | $10K | $12K | $6,962 | $6,165 |
| H-I | $2,143 | $8,923 | $8,727 | $10K | $6,952 | $7,873 | $7,776 | $5,610 | $5,934 |
| J-K | - | $6,482 | $5,534 | $4,627 | $5,487 | $4,880 | $5,308 | $4,351 | $5,032 |
| L-M | - | $2,906 | $2,374 | $2,296 | $2,586 | $3,926 | $2,697 | $2,815 | $1,569 |
| N+ | - | $1,681 | $3,262 | $1,664 | $1,479 | $2,181 | $16K | $8,787 | $6,928 |
By Carat Weight
0.20-0.29
9,044 listings
Avg: £3,032 GBP/ct
0.30-0.49
123,866 listings
Avg: £1,410 GBP/ct
0.50-0.74
133,883 listings
Avg: £1,490 GBP/ct
0.75-0.99
24,152 listings
Avg: £2,011 GBP/ct
1.00-1.24
73,615 listings
Avg: £2,754 GBP/ct
1.25-1.49
4,273 listings
Avg: £3,907 GBP/ct
1.50-1.99
26,820 listings
Avg: £4,795 GBP/ct
2.00-2.49
14,875 listings
Avg: £6,400 GBP/ct
2.50-2.99
2,701 listings
Avg: £9,063 GBP/ct
3.00-3.99
3,758 listings
Avg: £10,463 GBP/ct
4.00-4.99
568 listings
Avg: £13,686 GBP/ct
5.00-9.99
579 listings
Avg: £17,570 GBP/ct
10.00+
70 listings
Avg: £35,543 GBP/ct
unknown
1,788 listings
Avg: £8,629 GBP/ct
Price by Colour & Clarity
| Colour | Clarity | Listings | Avg Price/ct |
|---|---|---|---|
| D-E | FL | 1,353 | £19,559 GBP |
| D-E | I | 2,715 | £4,028 GBP |
| D-E | IF | 11,046 | £11,139 GBP |
| D-E | SI1 | 28,586 | £7,030 GBP |
| D-E | SI2 | 22,056 | £5,325 GBP |
| D-E | VS1 | 29,477 | £9,493 GBP |
| D-E | VS2 | 30,307 | £8,822 GBP |
| D-E | VVS1 | 25,522 | £10,848 GBP |
| D-E | VVS2 | 22,496 | £10,720 GBP |
| F-G | FL | 38 | £1,875 GBP |
| F-G | I | 2,864 | £4,573 GBP |
| F-G | IF | 4,886 | £8,779 GBP |
| F-G | SI1 | 21,799 | £8,774 GBP |
| F-G | SI2 | 21,268 | £5,163 GBP |
| F-G | VS1 | 20,416 | £8,067 GBP |
| F-G | VS2 | 21,280 | £7,486 GBP |
| F-G | VVS1 | 13,029 | £8,269 GBP |
| F-G | VVS2 | 14,790 | £11,080 GBP |
| H-I | FL | 28 | £1,590 GBP |
| H-I | I | 2,811 | £4,401 GBP |
| H-I | IF | 3,919 | £6,618 GBP |
| H-I | SI1 | 14,278 | £5,767 GBP |
| H-I | SI2 | 15,969 | £4,161 GBP |
| H-I | VS1 | 12,521 | £5,156 GBP |
| H-I | VS2 | 13,506 | £5,839 GBP |
| H-I | VVS1 | 8,268 | £6,472 GBP |
| H-I | VVS2 | 8,888 | £7,501 GBP |
| J-K | I | 1,377 | £3,732 GBP |
| J-K | IF | 1,511 | £4,808 GBP |
| J-K | SI1 | 7,327 | £3,936 GBP |
| J-K | SI2 | 7,968 | £3,227 GBP |
| J-K | VS1 | 4,799 | £4,069 GBP |
| J-K | VS2 | 5,957 | £3,619 GBP |
| J-K | VVS1 | 3,440 | £4,104 GBP |
| J-K | VVS2 | 3,281 | £3,432 GBP |
| L-M | I | 149 | £1,164 GBP |
| L-M | IF | 213 | £2,155 GBP |
| L-M | SI1 | 1,185 | £2,000 GBP |
| L-M | SI2 | 1,386 | £2,088 GBP |
| L-M | VS1 | 788 | £1,918 GBP |
| L-M | VS2 | 1,044 | £2,912 GBP |
| L-M | VVS1 | 394 | £1,760 GBP |
| L-M | VVS2 | 480 | £1,703 GBP |
| N+ | I | 755 | £5,138 GBP |
| N+ | IF | 26 | £1,247 GBP |
| N+ | SI1 | 509 | £12,042 GBP |
| N+ | SI2 | 641 | £6,517 GBP |
| N+ | VS1 | 626 | £1,097 GBP |
| N+ | VS2 | 696 | £1,618 GBP |
| N+ | VVS1 | 95 | £2,420 GBP |
| N+ | VVS2 | 1,060 | £1,234 GBP |
| N+ | other | 169 | £12,803 GBP |