Lab Grown Diamond Market
As of July 2026, there are 17,605,570 lab grown diamond listings available across retailers worldwide. The average price per carat is $1,365 USD. Prices have decreased by 4.4% over the past 30 days.
Last updated: July 2026
Available by shape
Listing counts across the top 10 most-stocked shapes for this origin.
Round
6.5M
Oval
2.9M
Pear
1.8M
Emerald
1.3M
Cushion
1.2M
Radiant
1.1M
Marquise
938K
Princess
844K
Heart
513K
Asscher
377K
Price by carat bucket
Average price per carat rises sharply at the 1.00, 2.00 and 3.00ct marks.
0.20-0.29ct
$1.1K
0.30-0.49ct
$1.2K
0.50-0.74ct
$1.1K
0.75-0.99ct
$1.1K
1.00-1.24ct
$1.1K
1.25-1.49ct
$993
1.50-1.99ct
$1.3K
2.00-2.49ct
$1.5K
2.50-2.99ct
$1.5K
3.00-3.99ct
$1.7K
4.00-4.99ct
$1.8K
5.00-9.99ct
$2.0K
10.00+ct
$1.4K
unknownct
$1.5K
Available Shapes
Round
6,517,325 listings
Avg: $2,084 USD/ct
Oval
2,876,758 listings
Avg: $1,605 USD/ct
Pear
1,814,805 listings
Avg: $1,413 USD/ct
Emerald
1,320,109 listings
Avg: $1,334 USD/ct
Cushion
1,156,988 listings
Avg: $1,275 USD/ct
Radiant
1,137,817 listings
Avg: $1,182 USD/ct
Marquise
937,562 listings
Avg: $1,161 USD/ct
Princess
844,460 listings
Avg: $1,296 USD/ct
Heart
513,227 listings
Avg: $1,278 USD/ct
Asscher
377,307 listings
Avg: $1,309 USD/ct
Other
82,402 listings
Avg: $851 USD/ct
Trillion
17,182 listings
Avg: $726 USD/ct
Baguette
7,973 listings
Avg: $555 USD/ct
Sq_radiant
1,655 listings
Avg: $466 USD/ct
By Carat Weight
| Carat Range | Listings | Avg Price/ct |
|---|---|---|
| 0.20-0.29 | 81,854 | $1,131 USD |
| 0.30-0.49 | 667,900 | $1,203 USD |
| 0.50-0.74 | 1,227,553 | $1,140 USD |
| 0.75-0.99 | 732,506 | $1,133 USD |
| 1.00-1.24 | 3,149,036 | $1,090 USD |
| 1.25-1.49 | 773,433 | $993 USD |
| 1.50-1.99 | 3,277,664 | $1,295 USD |
| 2.00-2.49 | 2,510,298 | $1,499 USD |
| 2.50-2.99 | 1,232,465 | $1,453 USD |
| 3.00-3.99 | 1,888,907 | $1,689 USD |
| 4.00-4.99 | 909,018 | $1,816 USD |
| 5.00-9.99 | 975,161 | $1,981 USD |
| 10.00+ | 162,306 | $1,441 USD |
| unknown | 17,469 | $1,474 USD |