Natural Diamond Market
As of April 2026, there are 7,511,748 natural diamond listings available across retailers worldwide. The average price per carat is $11,605 NZD. Prices have decreased by 9.5% over the past 30 days.
Last updated: April 2026
Available by shape
Listing counts across the top 10 most-stocked shapes for this origin.
Round
3.4M
Oval
924K
Pear
782K
Emerald
745K
Heart
390K
Cushion
360K
Princess
299K
Marquise
203K
Radiant
193K
Asscher
146K
Price by carat bucket
Average price per carat rises sharply at the 1.00, 2.00 and 3.00ct marks.
0.20-0.29ct
$3.6K
0.30-0.49ct
$1.9K
0.50-0.74ct
$2.1K
0.75-0.99ct
$2.3K
1.00-1.24ct
$3.1K
1.25-1.49ct
$3.8K
1.50-1.99ct
$4.7K
2.00-2.49ct
$6.7K
2.50-2.99ct
$8.7K
3.00-3.99ct
$11.4K
4.00-4.99ct
$14.5K
5.00-9.99ct
$18.8K
10.00+ct
$32.0K
unknownct
$8.5K
Available Shapes
Round
3,448,972 listings
Avg: $13,876 NZD/ct
Oval
924,152 listings
Avg: $12,427 NZD/ct
Pear
782,106 listings
Avg: $13,657 NZD/ct
Emerald
744,880 listings
Avg: $12,079 NZD/ct
Heart
390,028 listings
Avg: $11,153 NZD/ct
Cushion
360,056 listings
Avg: $11,980 NZD/ct
Princess
299,133 listings
Avg: $7,355 NZD/ct
Marquise
202,661 listings
Avg: $12,246 NZD/ct
Radiant
193,035 listings
Avg: $12,396 NZD/ct
Asscher
145,540 listings
Avg: $10,629 NZD/ct
Other
14,778 listings
Avg: $6,397 NZD/ct
Baguette
4,760 listings
Avg: $5,896 NZD/ct
Trillion
1,647 listings
Avg: $7,435 NZD/ct
By Carat Weight
| Carat Range | Listings | Avg Price/ct |
|---|---|---|
| 0.20-0.29 | 198,635 | $6,045 NZD |
| 0.30-0.49 | 1,539,491 | $3,218 NZD |
| 0.50-0.74 | 2,159,761 | $3,435 NZD |
| 0.75-0.99 | 701,687 | $3,807 NZD |
| 1.00-1.24 | 1,328,808 | $5,230 NZD |
| 1.25-1.49 | 150,041 | $6,411 NZD |
| 1.50-1.99 | 657,698 | $7,776 NZD |
| 2.00-2.49 | 345,864 | $11,150 NZD |
| 2.50-2.99 | 104,582 | $14,467 NZD |
| 3.00-3.99 | 146,974 | $18,986 NZD |
| 4.00-4.99 | 41,582 | $24,185 NZD |
| 5.00-9.99 | 49,114 | $31,312 NZD |
| 10.00+ | 3,345 | $53,269 NZD |
| unknown | 84,166 | $14,136 NZD |