How much does a natural radiant diamond cost in Australia?

Natural radiant diamonds in Australia list between $410 AUD and $651,394 AUD AUD, with a median of $10,136 AUD across 333,653 active listings.

Is a natural radiant diamond worth it in Australia?

Natural radiant stones in Australia are priced in AUD and reflect local retailer markup. Cross-retailer aggregation across more than one hundred sources lets you see if a particular listing is above or below the regional median.

Where does Australia pricing data come from for radiant diamonds?

Carat Hunter aggregates live retailer pricing from more than one hundred jewellery sites globally and shows the Australia view in AUD. Pricing for radiant stones is refreshed daily.

Natural Radiant Diamond Prices in Australia

Quick answer

As of September 2026, Carat Hunter tracks 333,653 natural radiant diamonds listed by at least 64 retailers. The median listing sits at $10,136 AUD per carat, and most stock falls between $410 AUD and $651,394 AUD per carat. About 14% of these stones are listed by more than one retailer, and the same stone is priced 50% apart on average between its cheapest and most expensive seller. The most common size is 0.50 to 0.74 carats, with 88,990 listings at an average of $2,806 AUD per carat. The best value grade combination with real depth of stock is H to I VS2 at $8,628 AUD per carat across 15,744 listings. The same shape in lab grown form runs about $1,610 AUD per carat, roughly 84% less.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Radiant natural stones in the index: 2,765 USD per carat, +6.0% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

By Carat Weight

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$13K	$10K	$6,875	$8,290	$11K	$11K	$8,857	$6,906	$5,812
F-G	$4,123	$8,490	$10K	$9,980	$13K	$9,239	$7,741	$6,788	$7,877
H-I	$4,502	$7,526	$7,579	$7,831	$7,515	$6,148	$7,582	$6,018	$6,171
J-K	$1,829	$3,630	$5,235	$4,947	$6,858	$6,487	$5,315	$4,199	$5,170
L-M	-	$2,067	$1,968	$2,598	$3,177	$2,949	$2,712	$3,414	$1,760
N+	$4,664	$7,923	$7,302	$6,651	$8,024	$12K	$8,251	$7,933	$6,847

By Carat Weight

Price by Colour & Clarity

Colour	Clarity	Listings	Avg Price/ct
D-E	FL	325	$18,904 AUD
D-E	I	1,581	$8,156 AUD
D-E	IF	3,807	$14,133 AUD
D-E	SI1	11,858	$12,430 AUD
D-E	SI2	6,725	$9,692 AUD
D-E	VS1	14,568	$14,856 AUD
D-E	VS2	14,256	$15,156 AUD
D-E	VVS1	11,449	$9,648 AUD
D-E	VVS2	10,670	$11,634 AUD
F-G	FL	243	$5,786 AUD
F-G	I	2,060	$11,054 AUD
F-G	IF	4,089	$11,915 AUD
F-G	SI1	13,576	$10,864 AUD
F-G	SI2	8,413	$9,526 AUD
F-G	VS1	17,044	$17,800 AUD
F-G	VS2	17,649	$12,966 AUD
F-G	VVS1	12,474	$14,501 AUD
F-G	VVS2	11,926	$14,005 AUD
H-I	FL	192	$6,317 AUD
H-I	I	2,294	$8,660 AUD
H-I	IF	2,862	$10,562 AUD
H-I	SI1	13,589	$10,640 AUD
H-I	SI2	8,921	$8,445 AUD
H-I	VS1	15,219	$10,546 AUD
H-I	VS2	15,744	$8,628 AUD
H-I	VVS1	12,229	$10,636 AUD
H-I	VVS2	11,980	$10,990 AUD
J-K	FL	67	$2,566 AUD
J-K	I	1,090	$7,256 AUD
J-K	IF	1,078	$5,094 AUD
J-K	SI1	7,148	$7,459 AUD
J-K	SI2	4,947	$5,894 AUD
J-K	VS1	6,332	$9,624 AUD
J-K	VS2	7,320	$9,104 AUD
J-K	VVS1	4,144	$7,347 AUD
J-K	VVS2	4,464	$6,943 AUD
L-M	I	39	$2,469 AUD
L-M	IF	113	$2,901 AUD
L-M	SI1	995	$3,807 AUD
L-M	SI2	845	$4,791 AUD
L-M	VS1	909	$4,459 AUD
L-M	VS2	940	$4,139 AUD
L-M	VVS1	443	$2,761 AUD
L-M	VVS2	509	$3,646 AUD
N+	FL	95	$6,545 AUD
N+	I	1,378	$9,608 AUD
N+	IF	2,357	$11,120 AUD
N+	SI1	4,922	$11,579 AUD
N+	SI2	3,004	$11,133 AUD
N+	VS1	11,718	$11,260 AUD
N+	VS2	10,465	$16,648 AUD
N+	VVS1	5,150	$10,248 AUD
N+	VVS2	7,173	$9,334 AUD
N+	other	265	$16,096 AUD