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 $10,643 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: $12,677 NZD/ct
Oval
1,601,771 listings
Avg: $12,931 NZD/ct
Pear
1,331,379 listings
Avg: $11,961 NZD/ct
Emerald
1,173,727 listings
Avg: $10,122 NZD/ct
Cushion
729,832 listings
Avg: $12,304 NZD/ct
Princess
572,658 listings
Avg: $8,717 NZD/ct
Marquise
543,268 listings
Avg: $11,613 NZD/ct
Heart
470,035 listings
Avg: $9,017 NZD/ct
Radiant
434,864 listings
Avg: $10,640 NZD/ct
Asscher
233,137 listings
Avg: $7,736 NZD/ct
Other
30,282 listings
Avg: $8,009 NZD/ct
Trillion
5,152 listings
Avg: $6,803 NZD/ct
Baguette
3,235 listings
Avg: $6,652 NZD/ct
Sq_radiant
469 listings
Avg: $4,826 NZD/ct
By Carat Weight
| Carat Range | Listings | Avg Price/ct |
|---|---|---|
| 0.20-0.29 | 332,378 | $8,747 NZD |
| 0.30-0.49 | 4,421,802 | $3,662 NZD |
| 0.50-0.74 | 4,374,845 | $3,648 NZD |
| 0.75-0.99 | 1,369,284 | $4,133 NZD |
| 1.00-1.24 | 2,679,190 | $5,706 NZD |
| 1.25-1.49 | 331,951 | $7,088 NZD |
| 1.50-1.99 | 1,388,652 | $8,864 NZD |
| 2.00-2.49 | 702,710 | $12,405 NZD |
| 2.50-2.99 | 199,113 | $15,735 NZD |
| 3.00-3.99 | 254,062 | $20,063 NZD |
| 4.00-4.99 | 59,969 | $25,865 NZD |
| 5.00-9.99 | 50,660 | $29,925 NZD |
| 10.00+ | 1,948 | $25,283 NZD |
| unknown | 115,711 | $17,573 NZD |