Natural Radiant Diamond Prices in New Zealand
Last updated: September 2026
By Carat Weight
Price Distribution
LowHigh
| Colour | FL | IF | VVS1 | VVS2 | VS1 | VS2 | SI1 | SI2 | I |
|---|---|---|---|---|---|---|---|---|---|
| D-E | $13K | $10K | $6,830 | $8,138 | $10K | $10K | $8,695 | $6,399 | $5,542 |
| F-G | $4,162 | $8,454 | $9,236 | $9,676 | $12K | $8,583 | $7,706 | $6,723 | $7,807 |
| H-I | $4,323 | $7,536 | $7,558 | $7,635 | $7,092 | $5,661 | $7,344 | $6,434 | $6,111 |
| J-K | $1,872 | $3,643 | $5,631 | $4,960 | $6,737 | $6,686 | $5,966 | $4,233 | $5,192 |
| L-M | - | $2,176 | $2,116 | $2,583 | $3,121 | $2,985 | $2,749 | $3,530 | $1,885 |
| N+ | $4,578 | $7,994 | $7,424 | $6,894 | $8,199 | $12K | $8,414 | $8,161 | $7,420 |
By Carat Weight
0.20-0.29
1,032 listings
Avg: $7,806 NZD/ct
0.30-0.49
26,030 listings
Avg: $3,758 NZD/ct
0.50-0.74
84,393 listings
Avg: $3,356 NZD/ct
0.75-0.99
29,890 listings
Avg: $4,058 NZD/ct
1.00-1.24
81,872 listings
Avg: $4,877 NZD/ct
1.25-1.49
9,073 listings
Avg: $7,119 NZD/ct
1.50-1.99
42,411 listings
Avg: $8,254 NZD/ct
2.00-2.49
24,642 listings
Avg: $11,434 NZD/ct
2.50-2.99
5,115 listings
Avg: $14,538 NZD/ct
3.00-3.99
9,507 listings
Avg: $18,618 NZD/ct
4.00-4.99
1,706 listings
Avg: $21,330 NZD/ct
5.00-9.99
2,314 listings
Avg: $29,009 NZD/ct
10.00+
384 listings
Avg: $36,447 NZD/ct
unknown
104 listings
Avg: $56,201 NZD/ct
Price by Colour & Clarity
| Colour | Clarity | Listings | Avg Price/ct |
|---|---|---|---|
| D-E | FL | 319 | $22,366 NZD |
| D-E | I | 1,475 | $9,237 NZD |
| D-E | IF | 3,581 | $16,723 NZD |
| D-E | SI1 | 11,514 | $14,491 NZD |
| D-E | SI2 | 6,371 | $10,665 NZD |
| D-E | VS1 | 13,954 | $17,474 NZD |
| D-E | VS2 | 13,797 | $17,376 NZD |
| D-E | VVS1 | 11,013 | $11,383 NZD |
| D-E | VVS2 | 10,239 | $13,564 NZD |
| F-G | FL | 235 | $6,937 NZD |
| F-G | I | 1,962 | $13,012 NZD |
| F-G | IF | 3,901 | $14,090 NZD |
| F-G | SI1 | 13,267 | $12,843 NZD |
| F-G | SI2 | 8,238 | $11,205 NZD |
| F-G | VS1 | 16,457 | $19,846 NZD |
| F-G | VS2 | 17,174 | $14,305 NZD |
| F-G | VVS1 | 12,051 | $15,394 NZD |
| F-G | VVS2 | 11,455 | $16,126 NZD |
| H-I | FL | 179 | $7,205 NZD |
| H-I | I | 2,161 | $10,185 NZD |
| H-I | IF | 2,602 | $12,559 NZD |
| H-I | SI1 | 13,157 | $12,240 NZD |
| H-I | SI2 | 8,767 | $10,724 NZD |
| H-I | VS1 | 14,492 | $11,820 NZD |
| H-I | VS2 | 15,241 | $9,436 NZD |
| H-I | VVS1 | 11,782 | $12,597 NZD |
| H-I | VVS2 | 11,422 | $12,725 NZD |
| J-K | FL | 46 | $3,120 NZD |
| J-K | I | 858 | $8,653 NZD |
| J-K | IF | 928 | $6,072 NZD |
| J-K | SI1 | 6,900 | $9,944 NZD |
| J-K | SI2 | 4,343 | $7,056 NZD |
| J-K | VS1 | 5,977 | $11,228 NZD |
| J-K | VS2 | 6,877 | $11,144 NZD |
| J-K | VVS1 | 3,785 | $9,385 NZD |
| J-K | VVS2 | 4,131 | $8,266 NZD |
| L-M | I | 23 | $3,142 NZD |
| L-M | IF | 75 | $3,626 NZD |
| L-M | SI1 | 828 | $4,582 NZD |
| L-M | SI2 | 447 | $5,883 NZD |
| L-M | VS1 | 767 | $5,202 NZD |
| L-M | VS2 | 808 | $4,975 NZD |
| L-M | VVS1 | 329 | $3,527 NZD |
| L-M | VVS2 | 400 | $4,306 NZD |
| N+ | FL | 97 | $7,629 NZD |
| N+ | I | 1,310 | $12,367 NZD |
| N+ | IF | 2,218 | $13,323 NZD |
| N+ | SI1 | 4,675 | $14,023 NZD |
| N+ | SI2 | 2,835 | $13,601 NZD |
| N+ | VS1 | 11,192 | $13,665 NZD |
| N+ | VS2 | 9,938 | $19,503 NZD |
| N+ | VVS1 | 4,813 | $12,373 NZD |
| N+ | VVS2 | 6,803 | $11,489 NZD |
| N+ | other | 264 | $19,113 NZD |