Lab Grown Diamond Market
As of October 2026, there are 27,474,780 lab grown diamond listings available across retailers worldwide. The average price per carat is $751 USD. Prices have increased by 0.6% over the past 30 days.
Last updated: October 2026
Available by shape
Listing counts across the top 10 most-stocked shapes for this origin.
Round
9.2M
Oval
4.3M
Pear
2.9M
Emerald
2.5M
Radiant
2.1M
Marquise
1.9M
Cushion
1.8M
Princess
1.4M
Heart
847K
Asscher
489K
Price by carat bucket
Average price per carat rises sharply at the 1.00, 2.00 and 3.00ct marks.
0.20-0.29ct
$716
0.30-0.49ct
$805
0.50-0.74ct
$773
0.75-0.99ct
$679
1.00-1.24ct
$617
1.25-1.49ct
$602
1.50-1.99ct
$677
2.00-2.49ct
$825
2.50-2.99ct
$836
3.00-3.99ct
$810
4.00-4.99ct
$835
5.00-9.99ct
$885
10.00+ct
$577
unknownct
$1.1K
Available Shapes
Round
9,205,635 listings
Avg: $815 USD/ct
Oval
4,263,872 listings
Avg: $763 USD/ct
Pear
2,863,731 listings
Avg: $742 USD/ct
Emerald
2,467,970 listings
Avg: $735 USD/ct
Radiant
2,122,558 listings
Avg: $738 USD/ct
Marquise
1,884,957 listings
Avg: $748 USD/ct
Cushion
1,776,058 listings
Avg: $849 USD/ct
Princess
1,360,401 listings
Avg: $792 USD/ct
Heart
846,933 listings
Avg: $644 USD/ct
Asscher
488,926 listings
Avg: $783 USD/ct
Other
155,074 listings
Avg: $650 USD/ct
Trillion
22,107 listings
Avg: $672 USD/ct
Baguette
12,094 listings
Avg: $736 USD/ct
Sq_radiant
4,464 listings
Avg: $577 USD/ct
By Carat Weight
| Carat Range | Listings | Avg Price/ct |
|---|---|---|
| 0.20-0.29 | 125,589 | $716 USD |
| 0.30-0.49 | 929,041 | $805 USD |
| 0.50-0.74 | 1,432,839 | $773 USD |
| 0.75-0.99 | 973,132 | $679 USD |
| 1.00-1.24 | 4,610,480 | $617 USD |
| 1.25-1.49 | 1,079,219 | $602 USD |
| 1.50-1.99 | 4,778,660 | $677 USD |
| 2.00-2.49 | 3,965,782 | $825 USD |
| 2.50-2.99 | 2,128,421 | $836 USD |
| 3.00-3.99 | 3,341,262 | $810 USD |
| 4.00-4.99 | 1,682,879 | $835 USD |
| 5.00-9.99 | 2,121,146 | $885 USD |
| 10.00+ | 289,264 | $577 USD |
| unknown | 17,066 | $1,110 USD |