Lab Grown Diamond Market
As of September 2026, there are 19,372,058 lab grown diamond listings available across retailers worldwide. The average price per carat is €1,150 EUR. Prices have decreased by 7.9% over the past 30 days.
Last updated: September 2026
Available by shape
Listing counts across the top 10 most-stocked shapes for this origin.
Round
7.3M
Oval
3.0M
Pear
2.0M
Emerald
1.5M
Cushion
1.3M
Radiant
1.3M
Marquise
1.2M
Princess
911K
Heart
453K
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
$1.1K
0.50-0.74ct
$1.1K
0.75-0.99ct
$1.1K
1.00-1.24ct
$966
1.25-1.49ct
$900
1.50-1.99ct
$1.2K
2.00-2.49ct
$1.4K
2.50-2.99ct
$1.3K
3.00-3.99ct
$1.5K
4.00-4.99ct
$1.7K
5.00-9.99ct
$1.8K
10.00+ct
$1.4K
unknownct
$1.4K
Available Shapes
Round
7,267,686 listings
Avg: €1,748 EUR/ct
Oval
3,045,304 listings
Avg: €1,393 EUR/ct
Pear
2,021,067 listings
Avg: €1,195 EUR/ct
Emerald
1,453,732 listings
Avg: €1,156 EUR/ct
Cushion
1,328,456 listings
Avg: €1,052 EUR/ct
Radiant
1,290,071 listings
Avg: €1,045 EUR/ct
Marquise
1,197,026 listings
Avg: €1,043 EUR/ct
Princess
910,676 listings
Avg: €1,077 EUR/ct
Heart
452,862 listings
Avg: €1,032 EUR/ct
Asscher
275,998 listings
Avg: €1,023 EUR/ct
Other
101,451 listings
Avg: €685 EUR/ct
Trillion
18,470 listings
Avg: €651 EUR/ct
Baguette
7,693 listings
Avg: €486 EUR/ct
Sq_radiant
1,566 listings
Avg: €417 EUR/ct
By Carat Weight
| Carat Range | Listings | Avg Price/ct |
|---|---|---|
| 0.20-0.29 | 88,666 | €977 EUR |
| 0.30-0.49 | 789,340 | €1,018 EUR |
| 0.50-0.74 | 1,264,182 | €967 EUR |
| 0.75-0.99 | 806,090 | €978 EUR |
| 1.00-1.24 | 3,649,740 | €886 EUR |
| 1.25-1.49 | 864,192 | €826 EUR |
| 1.50-1.99 | 3,540,053 | €1,117 EUR |
| 2.00-2.49 | 2,633,463 | €1,255 EUR |
| 2.50-2.99 | 1,412,514 | €1,216 EUR |
| 3.00-3.99 | 2,012,383 | €1,364 EUR |
| 4.00-4.99 | 1,078,890 | €1,532 EUR |
| 5.00-9.99 | 1,051,700 | €1,668 EUR |
| 10.00+ | 162,962 | €1,303 EUR |
| unknown | 17,883 | €1,258 EUR |