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 $10,637 NZD. 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: $12,670 NZD/ct
Oval
1,601,771 listings
Avg: $12,924 NZD/ct
Pear
1,331,379 listings
Avg: $11,955 NZD/ct
Emerald
1,173,727 listings
Avg: $10,117 NZD/ct
Cushion
729,832 listings
Avg: $12,297 NZD/ct
Princess
572,658 listings
Avg: $8,712 NZD/ct
Marquise
543,268 listings
Avg: $11,606 NZD/ct
Heart
470,035 listings
Avg: $9,012 NZD/ct
Radiant
434,864 listings
Avg: $10,634 NZD/ct
Asscher
233,137 listings
Avg: $7,732 NZD/ct
Other
30,282 listings
Avg: $8,005 NZD/ct
Trillion
5,152 listings
Avg: $6,799 NZD/ct
Baguette
3,235 listings
Avg: $6,649 NZD/ct
Sq_radiant
469 listings
Avg: $4,823 NZD/ct
By Carat Weight
| Carat Range | Listings | Avg Price/ct |
|---|---|---|
| 0.20-0.29 | 332,378 | $8,742 NZD |
| 0.30-0.49 | 4,421,802 | $3,660 NZD |
| 0.50-0.74 | 4,374,845 | $3,646 NZD |
| 0.75-0.99 | 1,369,284 | $4,130 NZD |
| 1.00-1.24 | 2,679,190 | $5,703 NZD |
| 1.25-1.49 | 331,951 | $7,084 NZD |
| 1.50-1.99 | 1,388,652 | $8,859 NZD |
| 2.00-2.49 | 702,710 | $12,398 NZD |
| 2.50-2.99 | 199,113 | $15,726 NZD |
| 3.00-3.99 | 254,062 | $20,051 NZD |
| 4.00-4.99 | 59,969 | $25,851 NZD |
| 5.00-9.99 | 50,660 | $29,908 NZD |
| 10.00+ | 1,948 | $25,268 NZD |
| unknown | 115,711 | $17,563 NZD |