Natural Diamond Market
As of June 2026, there are 8,649,790 natural diamond listings available across retailers worldwide. The average price per carat is $12,405 NZD. Prices have decreased by 6.4% over the past 30 days.
Last updated: June 2026
Available by shape
Listing counts across the top 10 most-stocked shapes for this origin.
Round
4.5M
Oval
973K
Pear
804K
Emerald
725K
Cushion
386K
Heart
361K
Princess
303K
Marquise
239K
Radiant
208K
Asscher
159K
Price by carat bucket
Average price per carat rises sharply at the 1.00, 2.00 and 3.00ct marks.
0.20-0.29ct
$3.4K
0.30-0.49ct
$1.7K
0.50-0.74ct
$1.9K
0.75-0.99ct
$2.2K
1.00-1.24ct
$3.0K
1.25-1.49ct
$3.9K
1.50-1.99ct
$4.7K
2.00-2.49ct
$7.0K
2.50-2.99ct
$9.1K
3.00-3.99ct
$12.1K
4.00-4.99ct
$15.9K
5.00-9.99ct
$20.7K
10.00+ct
$33.4K
unknownct
$9.2K
Available Shapes
Round
4,466,302 listings
Avg: $14,586 NZD/ct
Oval
973,244 listings
Avg: $13,532 NZD/ct
Pear
803,615 listings
Avg: $14,427 NZD/ct
Emerald
724,688 listings
Avg: $12,570 NZD/ct
Cushion
386,391 listings
Avg: $12,511 NZD/ct
Heart
360,805 listings
Avg: $11,498 NZD/ct
Princess
302,910 listings
Avg: $8,431 NZD/ct
Marquise
238,752 listings
Avg: $13,737 NZD/ct
Radiant
207,828 listings
Avg: $12,741 NZD/ct
Asscher
158,774 listings
Avg: $11,679 NZD/ct
Other
20,027 listings
Avg: $9,786 NZD/ct
Baguette
4,566 listings
Avg: $5,780 NZD/ct
Trillion
1,888 listings
Avg: $6,857 NZD/ct
By Carat Weight
| Carat Range | Listings | Avg Price/ct |
|---|---|---|
| 0.20-0.29 | 234,873 | $5,658 NZD |
| 0.30-0.49 | 1,930,096 | $2,905 NZD |
| 0.50-0.74 | 2,523,299 | $3,149 NZD |
| 0.75-0.99 | 807,005 | $3,654 NZD |
| 1.00-1.24 | 1,481,374 | $5,071 NZD |
| 1.25-1.49 | 166,729 | $6,463 NZD |
| 1.50-1.99 | 722,849 | $7,878 NZD |
| 2.00-2.49 | 365,350 | $11,716 NZD |
| 2.50-2.99 | 103,882 | $15,175 NZD |
| 3.00-3.99 | 146,989 | $20,084 NZD |
| 4.00-4.99 | 39,643 | $26,446 NZD |
| 5.00-9.99 | 50,771 | $34,535 NZD |
| 10.00+ | 3,707 | $55,627 NZD |
| unknown | 73,223 | $15,359 NZD |