Lab Grown Diamond Market
As of June 2026, there are 17,185,987 lab grown diamond listings available across retailers worldwide. The average price per carat is $1,506 USD. Prices have decreased by 3.7% over the past 30 days.
Last updated: June 2026
Available by shape
Listing counts across the top 10 most-stocked shapes for this origin.
Round
6.4M
Oval
2.9M
Pear
1.7M
Emerald
1.2M
Radiant
1.2M
Marquise
1.2M
Cushion
1.0M
Princess
773K
Heart
451K
Asscher
313K
Price by carat bucket
Average price per carat rises sharply at the 1.00, 2.00 and 3.00ct marks.
0.20-0.29ct
$1.2K
0.30-0.49ct
$1.2K
0.50-0.74ct
$1.2K
0.75-0.99ct
$1.1K
1.00-1.24ct
$1.1K
1.25-1.49ct
$1.1K
1.50-1.99ct
$1.4K
2.00-2.49ct
$1.6K
2.50-2.99ct
$1.6K
3.00-3.99ct
$2.0K
4.00-4.99ct
$2.2K
5.00-9.99ct
$2.6K
10.00+ct
$1.5K
unknownct
$1.6K
Available Shapes
Round
6,361,856 listings
Avg: $2,309 USD/ct
Oval
2,936,725 listings
Avg: $1,712 USD/ct
Pear
1,680,888 listings
Avg: $1,550 USD/ct
Emerald
1,210,291 listings
Avg: $1,533 USD/ct
Radiant
1,172,729 listings
Avg: $1,355 USD/ct
Marquise
1,171,817 listings
Avg: $1,211 USD/ct
Cushion
1,027,286 listings
Avg: $1,429 USD/ct
Princess
773,356 listings
Avg: $1,408 USD/ct
Heart
451,370 listings
Avg: $1,277 USD/ct
Asscher
312,776 listings
Avg: $1,356 USD/ct
Other
64,221 listings
Avg: $1,115 USD/ct
Trillion
14,327 listings
Avg: $886 USD/ct
Baguette
7,337 listings
Avg: $690 USD/ct
Sq_radiant
1,008 listings
Avg: $469 USD/ct
By Carat Weight
| Carat Range | Listings | Avg Price/ct |
|---|---|---|
| 0.20-0.29 | 72,708 | $1,189 USD |
| 0.30-0.49 | 542,531 | $1,215 USD |
| 0.50-0.74 | 1,018,306 | $1,160 USD |
| 0.75-0.99 | 672,592 | $1,148 USD |
| 1.00-1.24 | 3,198,774 | $1,146 USD |
| 1.25-1.49 | 884,233 | $1,067 USD |
| 1.50-1.99 | 3,337,868 | $1,438 USD |
| 2.00-2.49 | 2,583,365 | $1,633 USD |
| 2.50-2.99 | 1,188,109 | $1,567 USD |
| 3.00-3.99 | 1,894,343 | $1,962 USD |
| 4.00-4.99 | 818,513 | $2,236 USD |
| 5.00-9.99 | 817,210 | $2,557 USD |
| 10.00+ | 142,171 | $1,481 USD |
| unknown | 15,264 | $1,575 USD |