Natural Cushion Diamond Prices in Australia

Last updated: September 2026

By Carat Weight

Price Distribution

LowHigh

ColourFLIFVVS1VVS2VS1VS2SI1SI2I
D-E$25K$15K$11K$9,856$14K$12K$10K$5,781$5,245
F-G$4,064$9,294$9,434$12K$12K$12K$6,689$5,535$5,955
H-I$4,097$8,188$6,626$6,688$6,465$7,820$5,661$6,276$5,484
J-K$2,735$5,584$4,706$4,972$4,751$6,545$5,642$4,986$5,124
L-M-$2,449$2,162$2,793$2,999$3,088$3,842$3,554$1,750
N+$7,287$9,104$7,052$8,358$10K$8,914$8,275$8,156$7,243

By Carat Weight

0.20-0.29
5,502 listings
Avg: $7,923 AUD/ct
0.30-0.49
38,810 listings
Avg: $3,480 AUD/ct
0.50-0.74
103,195 listings
Avg: $2,643 AUD/ct
0.75-0.99
63,742 listings
Avg: $3,025 AUD/ct
1.00-1.24
148,778 listings
Avg: $4,000 AUD/ct
1.25-1.49
16,170 listings
Avg: $5,149 AUD/ct
1.50-1.99
108,767 listings
Avg: $5,806 AUD/ct
2.00-2.49
63,077 listings
Avg: $8,751 AUD/ct
2.50-2.99
15,518 listings
Avg: $12,517 AUD/ct
3.00-3.99
21,108 listings
Avg: $14,959 AUD/ct
4.00-4.99
4,789 listings
Avg: $20,891 AUD/ct
5.00-9.99
4,827 listings
Avg: $25,321 AUD/ct
10.00+
576 listings
Avg: $47,904 AUD/ct
unknown
942 listings
Avg: $14,117 AUD/ct

Price by Colour & Clarity

ColourClarityListingsAvg Price/ct
D-EFL331$35,505 AUD
D-EI2,057$7,361 AUD
D-EIF3,863$21,493 AUD
D-ESI122,351$14,167 AUD
D-ESI210,603$8,113 AUD
D-EVS131,048$19,020 AUD
D-EVS227,352$17,358 AUD
D-EVVS117,754$16,080 AUD
D-EVVS221,338$13,832 AUD
F-GFL112$5,703 AUD
F-GI2,561$8,357 AUD
F-GIF4,811$13,043 AUD
F-GSI125,670$9,388 AUD
F-GSI214,433$7,768 AUD
F-GVS139,326$16,405 AUD
F-GVS238,780$16,231 AUD
F-GVVS121,149$13,239 AUD
F-GVVS224,316$16,646 AUD
H-IFL128$5,749 AUD
H-II2,806$7,696 AUD
H-IIF3,935$11,491 AUD
H-ISI126,994$7,944 AUD
H-ISI215,986$8,808 AUD
H-IVS135,374$9,073 AUD
H-IVS233,819$10,975 AUD
H-IVVS118,028$9,299 AUD
H-IVVS223,250$9,387 AUD
J-KFL35$3,839 AUD
J-KI1,458$7,191 AUD
J-KIF1,403$7,837 AUD
J-KSI114,171$7,918 AUD
J-KSI28,388$6,997 AUD
J-KVS114,445$6,668 AUD
J-KVS214,412$9,185 AUD
J-KVVS17,229$6,604 AUD
J-KVVS29,024$6,978 AUD
L-MI123$2,456 AUD
L-MIF188$3,436 AUD
L-MSI11,636$5,392 AUD
L-MSI21,046$4,988 AUD
L-MVS11,438$4,209 AUD
L-MVS21,693$4,334 AUD
L-MVVS1709$3,034 AUD
L-MVVS21,114$3,920 AUD
N+FL169$10,227 AUD
N+I2,188$10,166 AUD
N+IF1,637$12,777 AUD
N+SI18,038$11,614 AUD
N+SI25,619$11,447 AUD
N+VS110,071$14,223 AUD
N+VS210,380$12,510 AUD
N+VVS14,017$9,897 AUD
N+VVS26,069$11,730 AUD
N+other926$16,448 AUD