Lab Grown Diamond Market

As of July 2026, there are 17,643,506 lab grown diamond listings available across retailers worldwide. The average price per carat is $2,107 AUD. Prices have decreased by 5.0% 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
933K
Princess
849K
Heart
515K
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
$1.0K
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
6,524,041 listings
Avg: $3,239 AUD/ct
Oval
2,870,868 listings
Avg: $2,487 AUD/ct
Pear
1,827,573 listings
Avg: $2,183 AUD/ct
Emerald
1,325,969 listings
Avg: $2,060 AUD/ct
Cushion
1,168,797 listings
Avg: $1,966 AUD/ct
Radiant
1,140,478 listings
Avg: $1,826 AUD/ct
Marquise
933,490 listings
Avg: $1,789 AUD/ct
Princess
849,066 listings
Avg: $1,979 AUD/ct
Heart
515,173 listings
Avg: $1,961 AUD/ct
Asscher
376,719 listings
Avg: $2,012 AUD/ct
Other
84,058 listings
Avg: $1,300 AUD/ct
Trillion
17,525 listings
Avg: $1,134 AUD/ct
Baguette
8,086 listings
Avg: $870 AUD/ct
Sq_radiant
1,663 listings
Avg: $715 AUD/ct

By Carat Weight

Carat RangeListingsAvg Price/ct
0.20-0.2981,583$1,741 AUD
0.30-0.49677,619$1,845 AUD
0.50-0.741,237,886$1,737 AUD
0.75-0.99741,202$1,747 AUD
1.00-1.243,150,821$1,693 AUD
1.25-1.49762,143$1,540 AUD
1.50-1.993,267,662$2,031 AUD
2.00-2.492,514,845$2,323 AUD
2.50-2.991,242,176$2,248 AUD
3.00-3.991,896,060$2,617 AUD
4.00-4.99912,829$2,774 AUD
5.00-9.99978,594$3,049 AUD
10.00+162,598$2,221 AUD
unknown17,488$2,265 AUD