Natural Round Diamond Prices in Australia
As of July 2026, there are 4,822,356 natural round diamonds available. Prices range from $210 AUD/ct to $350,077 AUD/ct, with an average of $13,145 AUD/ct.
Last updated: July 2026
By Carat Weight
Price Distribution
LowHigh
| Colour | FL | IF | VVS1 | VVS2 | VS1 | VS2 | SI1 | SI2 | I |
|---|---|---|---|---|---|---|---|---|---|
| D-E | $28K | $20K | $24K | $18K | $13K | $15K | $12K | $6,828 | $4,447 |
| F-G | $15K | $18K | $15K | $15K | $14K | $12K | $10K | $7,716 | $3,900 |
| H-I | $7,147 | $12K | $11K | $11K | $9,650 | $9,126 | $7,755 | $5,654 | $3,396 |
| J-K | $3,645 | $6,942 | $6,741 | $6,781 | $6,589 | $6,205 | $6,153 | $4,832 | $3,117 |
| L-M | $3,033 | $4,575 | $3,887 | $5,289 | $4,991 | $4,154 | $3,939 | $3,726 | $2,178 |
| N+ | - | $4,350 | $3,795 | $1,443 | $4,255 | $3,388 | $3,912 | $6,263 | $4,714 |
By Carat Weight
0.20-0.29
232,526 listings
Avg: $2,581 AUD/ct
0.30-0.49
1,359,525 listings
Avg: $2,392 AUD/ct
0.50-0.74
1,345,990 listings
Avg: $2,678 AUD/ct
0.75-0.99
385,273 listings
Avg: $3,685 AUD/ct
1.00-1.24
666,517 listings
Avg: $5,245 AUD/ct
1.25-1.49
92,062 listings
Avg: $6,612 AUD/ct
1.50-1.99
338,405 listings
Avg: $8,071 AUD/ct
2.00-2.49
165,837 listings
Avg: $12,292 AUD/ct
2.50-2.99
51,179 listings
Avg: $15,030 AUD/ct
3.00-3.99
64,660 listings
Avg: $19,815 AUD/ct
4.00-4.99
18,538 listings
Avg: $25,091 AUD/ct
5.00-9.99
17,597 listings
Avg: $32,250 AUD/ct
10.00+
1,070 listings
Avg: $49,021 AUD/ct
unknown
83,177 listings
Avg: $9,815 AUD/ct
Price by Colour & Clarity
| Colour | Clarity | Listings | Avg Price/ct |
|---|---|---|---|
| D-E | FL | 17,217 | $42,857 AUD |
| D-E | I | 21,129 | $6,841 AUD |
| D-E | IF | 119,068 | $30,581 AUD |
| D-E | SI1 | 173,119 | $17,815 AUD |
| D-E | SI2 | 116,110 | $10,505 AUD |
| D-E | VS1 | 199,038 | $19,711 AUD |
| D-E | VS2 | 184,676 | $23,497 AUD |
| D-E | VVS1 | 249,670 | $36,691 AUD |
| D-E | VVS2 | 214,309 | $28,184 AUD |
| D-E | other | 26 | $2,898 AUD |
| F-G | FL | 1,362 | $22,647 AUD |
| F-G | I | 32,818 | $6,000 AUD |
| F-G | IF | 117,723 | $27,393 AUD |
| F-G | SI1 | 206,256 | $15,672 AUD |
| F-G | SI2 | 159,545 | $11,871 AUD |
| F-G | VS1 | 239,777 | $21,346 AUD |
| F-G | VS2 | 238,663 | $18,717 AUD |
| F-G | VVS1 | 242,180 | $23,599 AUD |
| F-G | VVS2 | 207,706 | $22,960 AUD |
| F-G | other | 46 | $5,609 AUD |
| H-I | FL | 569 | $10,996 AUD |
| H-I | I | 27,609 | $5,225 AUD |
| H-I | IF | 73,816 | $18,279 AUD |
| H-I | SI1 | 192,707 | $11,931 AUD |
| H-I | SI2 | 143,449 | $8,699 AUD |
| H-I | VS1 | 222,670 | $14,845 AUD |
| H-I | VS2 | 227,764 | $14,041 AUD |
| H-I | VVS1 | 182,799 | $17,485 AUD |
| H-I | VVS2 | 189,065 | $16,577 AUD |
| H-I | other | 23 | $4,537 AUD |
| J-K | FL | 143 | $5,607 AUD |
| J-K | I | 15,900 | $4,795 AUD |
| J-K | IF | 35,080 | $10,681 AUD |
| J-K | SI1 | 98,771 | $9,467 AUD |
| J-K | SI2 | 75,382 | $7,434 AUD |
| J-K | VS1 | 109,040 | $10,137 AUD |
| J-K | VS2 | 93,503 | $9,547 AUD |
| J-K | VVS1 | 103,066 | $10,371 AUD |
| J-K | VVS2 | 99,387 | $10,433 AUD |
| L-M | FL | 33 | $4,665 AUD |
| L-M | I | 4,201 | $3,351 AUD |
| L-M | IF | 7,362 | $7,038 AUD |
| L-M | SI1 | 25,871 | $6,060 AUD |
| L-M | SI2 | 17,787 | $5,733 AUD |
| L-M | VS1 | 25,200 | $7,679 AUD |
| L-M | VS2 | 23,944 | $6,391 AUD |
| L-M | VVS1 | 23,259 | $5,980 AUD |
| L-M | VVS2 | 23,444 | $8,137 AUD |
| N+ | I | 5,179 | $7,252 AUD |
| N+ | IF | 537 | $6,692 AUD |
| N+ | SI1 | 5,666 | $6,019 AUD |
| N+ | SI2 | 4,759 | $9,635 AUD |
| N+ | VS1 | 5,693 | $6,546 AUD |
| N+ | VS2 | 5,353 | $5,213 AUD |
| N+ | VVS1 | 2,611 | $5,839 AUD |
| N+ | VVS2 | 9,609 | $2,219 AUD |
| N+ | other | 667 | $8,101 AUD |