Natural Diamond Market
As of October 2026, there are 16,282,275 natural diamond listings available across retailers worldwide. The average price per carat is $5,974 USD. Prices have decreased by 1.8% 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
1.6M
Pear
1.3M
Emerald
1.2M
Cushion
730K
Princess
573K
Marquise
543K
Heart
470K
Radiant
435K
Asscher
233K
Price by carat bucket
Average price per carat rises sharply at the 1.00, 2.00 and 3.00ct marks.
0.20-0.29ct
$4.9K
0.30-0.49ct
$2.1K
0.50-0.74ct
$2.0K
0.75-0.99ct
$2.3K
1.00-1.24ct
$3.2K
1.25-1.49ct
$4.0K
1.50-1.99ct
$5.0K
2.00-2.49ct
$7.0K
2.50-2.99ct
$8.8K
3.00-3.99ct
$11.3K
4.00-4.99ct
$14.5K
5.00-9.99ct
$16.8K
10.00+ct
$14.2K
unknownct
$9.9K
Available Shapes
Round
9,152,466 listings
Avg: $7,116 USD/ct
Oval
1,601,771 listings
Avg: $7,259 USD/ct
Pear
1,331,379 listings
Avg: $6,714 USD/ct
Emerald
1,173,727 listings
Avg: $5,682 USD/ct
Cushion
729,832 listings
Avg: $6,906 USD/ct
Princess
572,658 listings
Avg: $4,893 USD/ct
Marquise
543,268 listings
Avg: $6,518 USD/ct
Heart
470,035 listings
Avg: $5,061 USD/ct
Radiant
434,864 listings
Avg: $5,972 USD/ct
Asscher
233,137 listings
Avg: $4,343 USD/ct
Other
30,282 listings
Avg: $4,496 USD/ct
Trillion
5,152 listings
Avg: $3,819 USD/ct
Baguette
3,235 listings
Avg: $3,734 USD/ct
Sq_radiant
469 listings
Avg: $2,709 USD/ct
By Carat Weight
| Carat Range | Listings | Avg Price/ct |
|---|---|---|
| 0.20-0.29 | 332,378 | $4,910 USD |
| 0.30-0.49 | 4,421,802 | $2,055 USD |
| 0.50-0.74 | 4,374,845 | $2,048 USD |
| 0.75-0.99 | 1,369,284 | $2,320 USD |
| 1.00-1.24 | 2,679,190 | $3,203 USD |
| 1.25-1.49 | 331,951 | $3,979 USD |
| 1.50-1.99 | 1,388,652 | $4,975 USD |
| 2.00-2.49 | 702,710 | $6,963 USD |
| 2.50-2.99 | 199,113 | $8,832 USD |
| 3.00-3.99 | 254,062 | $11,262 USD |
| 4.00-4.99 | 59,969 | $14,519 USD |
| 5.00-9.99 | 50,660 | $16,798 USD |
| 10.00+ | 1,948 | $14,192 USD |
| unknown | 115,711 | $9,864 USD |