Lab Grown Diamond Market
As of April 2026, there are 14,520,424 lab grown diamond listings available across retailers worldwide. The average price per carat is $1,278 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
5.5M
Oval
2.4M
Pear
1.3M
Emerald
1.2M
Radiant
1.1M
Marquise
799K
Cushion
790K
Princess
726K
Heart
378K
Asscher
259K
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
$1.1K
0.75-0.99ct
$1.1K
1.00-1.24ct
$1.1K
1.25-1.49ct
$978
1.50-1.99ct
$1.2K
2.00-2.49ct
$1.4K
2.50-2.99ct
$1.3K
3.00-3.99ct
$1.4K
4.00-4.99ct
$1.8K
5.00-9.99ct
$1.8K
10.00+ct
$985
unknownct
$1.6K
Available Shapes
Round
5,460,347 listings
Avg: $2,007 USD/ct
Oval
2,427,304 listings
Avg: $1,409 USD/ct
Pear
1,302,565 listings
Avg: $1,327 USD/ct
Emerald
1,185,156 listings
Avg: $1,281 USD/ct
Radiant
1,119,410 listings
Avg: $1,111 USD/ct
Marquise
798,732 listings
Avg: $1,059 USD/ct
Cushion
790,035 listings
Avg: $1,156 USD/ct
Princess
726,185 listings
Avg: $1,198 USD/ct
Heart
378,295 listings
Avg: $1,160 USD/ct
Asscher
258,976 listings
Avg: $1,084 USD/ct
Other
52,082 listings
Avg: $940 USD/ct
Trillion
13,556 listings
Avg: $778 USD/ct
Baguette
6,670 listings
Avg: $593 USD/ct
Sq_radiant
1,111 listings
Avg: $432 USD/ct
By Carat Weight
| Carat Range | Listings | Avg Price/ct |
|---|---|---|
| 0.20-0.29 | 92,932 | $1,161 USD |
| 0.30-0.49 | 696,107 | $1,194 USD |
| 0.50-0.74 | 994,204 | $1,124 USD |
| 0.75-0.99 | 635,609 | $1,069 USD |
| 1.00-1.24 | 2,305,072 | $1,107 USD |
| 1.25-1.49 | 677,828 | $978 USD |
| 1.50-1.99 | 2,682,674 | $1,196 USD |
| 2.00-2.49 | 2,182,600 | $1,401 USD |
| 2.50-2.99 | 964,106 | $1,348 USD |
| 3.00-3.99 | 1,722,689 | $1,433 USD |
| 4.00-4.99 | 704,460 | $1,767 USD |
| 5.00-9.99 | 729,267 | $1,818 USD |
| 10.00+ | 114,324 | $985 USD |
| unknown | 18,552 | $1,603 USD |