Lab Grown Diamond Market
As of November 2026, there are 28,044,774 lab grown diamond listings available across retailers worldwide. The average price per carat is £550 GBP. Prices have increased by 1.0% over the past 30 days.
Last updated: November 2026
Available by shape
Listing counts across the top 10 most-stocked shapes for this origin.
Round
9.2M
Oval
4.4M
Pear
2.9M
Emerald
2.5M
Radiant
2.2M
Marquise
2.0M
Cushion
1.8M
Princess
1.4M
Heart
884K
Asscher
522K
Price by carat bucket
Average price per carat rises sharply at the 1.00, 2.00 and 3.00ct marks.
0.20-0.29ct
$704
0.30-0.49ct
$799
0.50-0.74ct
$767
0.75-0.99ct
$673
1.00-1.24ct
$614
1.25-1.49ct
$596
1.50-1.99ct
$672
2.00-2.49ct
$806
2.50-2.99ct
$833
3.00-3.99ct
$793
4.00-4.99ct
$799
5.00-9.99ct
$862
10.00+ct
$621
unknownct
$1.1K
Available Shapes
Round
9,197,258 listings
Avg: £595 GBP/ct
Oval
4,353,515 listings
Avg: £563 GBP/ct
Pear
2,936,908 listings
Avg: £543 GBP/ct
Emerald
2,545,684 listings
Avg: £538 GBP/ct
Radiant
2,195,759 listings
Avg: £550 GBP/ct
Marquise
2,009,746 listings
Avg: £540 GBP/ct
Cushion
1,795,660 listings
Avg: £622 GBP/ct
Princess
1,395,076 listings
Avg: £575 GBP/ct
Heart
884,276 listings
Avg: £466 GBP/ct
Asscher
522,329 listings
Avg: £579 GBP/ct
Other
168,132 listings
Avg: £472 GBP/ct
Trillion
22,969 listings
Avg: £491 GBP/ct
Baguette
12,763 listings
Avg: £548 GBP/ct
Sq_radiant
4,699 listings
Avg: £427 GBP/ct
By Carat Weight
| Carat Range | Listings | Avg Price/ct |
|---|---|---|
| 0.20-0.29 | 126,088 | £522 GBP |
| 0.30-0.49 | 954,568 | £592 GBP |
| 0.50-0.74 | 1,446,330 | £568 GBP |
| 0.75-0.99 | 970,256 | £499 GBP |
| 1.00-1.24 | 4,625,413 | £455 GBP |
| 1.25-1.49 | 1,082,758 | £441 GBP |
| 1.50-1.99 | 4,799,509 | £498 GBP |
| 2.00-2.49 | 4,106,418 | £597 GBP |
| 2.50-2.99 | 2,182,016 | £617 GBP |
| 3.00-3.99 | 3,507,928 | £588 GBP |
| 4.00-4.99 | 1,716,193 | £592 GBP |
| 5.00-9.99 | 2,211,715 | £638 GBP |
| 10.00+ | 297,964 | £460 GBP |
| unknown | 17,618 | £795 GBP |