Natural Diamond Market
As of July 2026, there are 9,440,872 natural diamond listings available across retailers worldwide. The average price per carat is $11,414 AUD. Prices have decreased by 6.2% 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
4.7M
Oval
1.1M
Pear
899K
Emerald
755K
Cushion
469K
Princess
375K
Heart
362K
Marquise
267K
Radiant
257K
Asscher
170K
Price by carat bucket
Average price per carat rises sharply at the 1.00, 2.00 and 3.00ct marks.
0.20-0.29ct
$4.2K
0.30-0.49ct
$2.0K
0.50-0.74ct
$2.0K
0.75-0.99ct
$2.3K
1.00-1.24ct
$3.2K
1.25-1.49ct
$3.9K
1.50-1.99ct
$4.7K
2.00-2.49ct
$6.8K
2.50-2.99ct
$9.0K
3.00-3.99ct
$11.6K
4.00-4.99ct
$15.6K
5.00-9.99ct
$19.7K
10.00+ct
$32.6K
unknownct
$10.7K
Available Shapes
Round
4,743,447 listings
Avg: $13,142 AUD/ct
Oval
1,117,601 listings
Avg: $12,457 AUD/ct
Pear
898,543 listings
Avg: $13,476 AUD/ct
Emerald
754,765 listings
Avg: $11,405 AUD/ct
Cushion
469,251 listings
Avg: $11,841 AUD/ct
Princess
375,367 listings
Avg: $7,853 AUD/ct
Heart
362,409 listings
Avg: $10,795 AUD/ct
Marquise
266,712 listings
Avg: $13,651 AUD/ct
Radiant
256,887 listings
Avg: $11,297 AUD/ct
Asscher
170,182 listings
Avg: $10,079 AUD/ct
Other
18,472 listings
Avg: $9,364 AUD/ct
Baguette
4,255 listings
Avg: $5,966 AUD/ct
Trillion
2,880 listings
Avg: $6,414 AUD/ct
Sq_radiant
101 listings
Avg: $2,998 AUD/ct
By Carat Weight
| Carat Range | Listings | Avg Price/ct |
|---|---|---|
| 0.20-0.29 | 273,267 | $6,465 AUD |
| 0.30-0.49 | 1,977,035 | $3,028 AUD |
| 0.50-0.74 | 2,606,740 | $3,106 AUD |
| 0.75-0.99 | 877,792 | $3,526 AUD |
| 1.00-1.24 | 1,758,325 | $4,851 AUD |
| 1.25-1.49 | 197,868 | $5,986 AUD |
| 1.50-1.99 | 859,259 | $7,298 AUD |
| 2.00-2.49 | 436,845 | $10,428 AUD |
| 2.50-2.99 | 117,062 | $13,849 AUD |
| 3.00-3.99 | 158,193 | $17,856 AUD |
| 4.00-4.99 | 40,703 | $24,013 AUD |
| 5.00-9.99 | 45,508 | $30,359 AUD |
| 10.00+ | 3,771 | $50,135 AUD |
| unknown | 88,504 | $16,521 AUD |