Natural Round Diamond Prices in Australia

Last updated: September 2026

By Carat Weight

Price Distribution

LowHigh

ColourFLIFVVS1VVS2VS1VS2SI1SI2I
D-E$25K$19K$24K$19K$13K$15K$11K$6,754$5,384
F-G$15K$16K$15K$15K$14K$12K$9,838$6,868$4,058
H-I$6,885$9,865$11K$9,913$9,827$8,653$6,938$5,792$3,833
J-K$5,223$6,646$6,564$6,446$6,591$6,014$5,874$4,424$3,461
L-M$3,032$4,329$3,923$5,012$4,578$4,127$3,523$2,991$2,233
N+-$4,156$3,142$1,296$3,569$3,540$3,805$5,557$4,275

By Carat Weight

0.20-0.29
260,297 listings
Avg: $2,722 AUD/ct
0.30-0.49
2,102,647 listings
Avg: $2,134 AUD/ct
0.50-0.74
1,888,072 listings
Avg: $2,310 AUD/ct
0.75-0.99
497,314 listings
Avg: $3,319 AUD/ct
1.00-1.24
811,027 listings
Avg: $4,683 AUD/ct
1.25-1.49
116,037 listings
Avg: $6,050 AUD/ct
1.50-1.99
427,298 listings
Avg: $7,190 AUD/ct
2.00-2.49
205,116 listings
Avg: $10,917 AUD/ct
2.50-2.99
64,931 listings
Avg: $13,573 AUD/ct
3.00-3.99
77,343 listings
Avg: $17,574 AUD/ct
4.00-4.99
22,616 listings
Avg: $22,285 AUD/ct
5.00-9.99
19,646 listings
Avg: $28,032 AUD/ct
10.00+
1,064 listings
Avg: $41,314 AUD/ct
unknown
91,000 listings
Avg: $8,113 AUD/ct

Price by Colour & Clarity

ColourClarityListingsAvg Price/ct
D-EFL23,401$35,078 AUD
D-EI27,985$7,556 AUD
D-EIF162,266$27,321 AUD
D-ESI1253,261$15,914 AUD
D-ESI2169,842$9,479 AUD
D-EVS1300,360$17,754 AUD
D-EVS2274,587$20,709 AUD
D-EVVS1397,842$33,457 AUD
D-EVVS2289,438$27,034 AUD
D-Eother26$3,139 AUD
F-GFL3,315$21,259 AUD
F-GI42,247$5,695 AUD
F-GIF138,963$22,547 AUD
F-GSI1290,226$13,806 AUD
F-GSI2221,174$9,639 AUD
F-GVS1336,444$19,355 AUD
F-GVS2335,096$17,244 AUD
F-GVVS1328,230$20,708 AUD
F-GVVS2286,404$20,652 AUD
F-Gother44$5,692 AUD
H-IFL1,290$9,662 AUD
H-II34,423$5,379 AUD
H-IIF92,679$13,845 AUD
H-ISI1246,668$9,737 AUD
H-ISI2183,808$8,129 AUD
H-IVS1297,923$13,792 AUD
H-IVS2300,602$12,143 AUD
H-IVVS1255,771$15,607 AUD
H-IVVS2251,999$13,912 AUD
H-Iother22$4,205 AUD
J-KFL633$7,330 AUD
J-KI20,454$4,857 AUD
J-KIF45,675$9,327 AUD
J-KSI1122,634$8,244 AUD
J-KSI296,117$6,209 AUD
J-KVS1139,424$9,250 AUD
J-KVS2118,548$8,440 AUD
J-KVVS1135,903$9,212 AUD
J-KVVS2125,700$9,047 AUD
L-MFL57$4,256 AUD
L-MI5,480$3,134 AUD
L-MIF8,671$6,076 AUD
L-MSI131,696$4,944 AUD
L-MSI223,811$4,198 AUD
L-MVS128,034$6,425 AUD
L-MVS227,038$5,792 AUD
L-MVVS127,714$5,505 AUD
L-MVVS226,530$7,033 AUD
N+I6,036$6,000 AUD
N+IF621$5,832 AUD
N+SI16,408$5,339 AUD
N+SI25,937$7,799 AUD
N+VS19,386$5,008 AUD
N+VS26,229$4,968 AUD
N+VVS13,206$4,409 AUD
N+VVS215,193$1,819 AUD
N+other937$7,977 AUD