Lab Grown Diamond Market
As of April 2026, there are 15,089,195 lab grown diamond listings available across retailers worldwide. The average price per carat is $1,316 USD. Prices have increased by 0.1% over the past 30 days.
Last updated: April 2026
Available by shape
Listing counts across the top 10 most-stocked shapes for this origin.
Round
5.6M
Oval
2.6M
Pear
1.3M
Emerald
1.2M
Radiant
1.2M
Marquise
831K
Cushion
820K
Princess
759K
Heart
398K
Asscher
276K
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
$984
1.50-1.99ct
$1.2K
2.00-2.49ct
$1.5K
2.50-2.99ct
$1.4K
3.00-3.99ct
$1.6K
4.00-4.99ct
$1.9K
5.00-9.99ct
$1.9K
10.00+ct
$929
unknownct
$1.6K
Available Shapes
Round
5,584,598 listings
Avg: $2,120 USD/ct
Oval
2,583,044 listings
Avg: $1,506 USD/ct
Pear
1,346,968 listings
Avg: $1,394 USD/ct
Emerald
1,241,321 listings
Avg: $1,294 USD/ct
Radiant
1,172,839 listings
Avg: $1,143 USD/ct
Marquise
831,277 listings
Avg: $1,080 USD/ct
Cushion
819,541 listings
Avg: $1,173 USD/ct
Princess
759,388 listings
Avg: $1,191 USD/ct
Heart
397,921 listings
Avg: $1,175 USD/ct
Asscher
276,231 listings
Avg: $1,089 USD/ct
Other
54,122 listings
Avg: $908 USD/ct
Trillion
13,991 listings
Avg: $767 USD/ct
Baguette
6,806 listings
Avg: $597 USD/ct
Sq_radiant
1,148 listings
Avg: $428 USD/ct
By Carat Weight
| Carat Range | Listings | Avg Price/ct |
|---|---|---|
| 0.20-0.29 | 90,325 | $1,143 USD |
| 0.30-0.49 | 713,814 | $1,182 USD |
| 0.50-0.74 | 1,019,682 | $1,109 USD |
| 0.75-0.99 | 666,828 | $1,058 USD |
| 1.00-1.24 | 2,392,123 | $1,114 USD |
| 1.25-1.49 | 693,424 | $984 USD |
| 1.50-1.99 | 2,772,359 | $1,238 USD |
| 2.00-2.49 | 2,291,509 | $1,501 USD |
| 2.50-2.99 | 1,008,499 | $1,416 USD |
| 3.00-3.99 | 1,807,518 | $1,582 USD |
| 4.00-4.99 | 729,876 | $1,853 USD |
| 5.00-9.99 | 760,766 | $1,943 USD |
| 10.00+ | 123,841 | $929 USD |
| unknown | 18,631 | $1,588 USD |