How much does a 5.00ct+ lab grown radiant diamond cost?

As of September 2026, 5.00ct+ lab grown radiant diamonds range from $181 AUD/ct to $32,280 AUD/ct, with an average of $1,987 AUD/ct.

What is the price range for 5.00ct+ lab grown radiant diamonds?

As of September 2026, the lowest listed price is $181 AUD per carat and the highest is $32,280 AUD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

How many 5.00ct+ lab grown radiant diamonds are available?

There are 136,469 active lab grown radiant listings between 5.00ct+ across 100+ retailers in the Carat Hunter index, refreshed daily.

Lab Grown Radiant Diamonds, 5.00ct+

Quick answer

As of September 2026, there are 136,469 lab grown radiant diamonds between 5.00ct+ listed by at least 48 retailers. A typical stone in this range costs about $11,922 AUD in total, or $1,987 AUD per carat, and most listings sit between $181 AUD and $32,280 AUD per carat. The best value grade combination with real depth of stock is F to G VVS2 at $583 AUD per carat across 29,357 listings. The same shape in natural form runs about $25,626 AUD per carat, roughly 12.9 times more.

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 lab grown stones in the index: 473 USD per carat, -12.5% 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

Browse 136,469 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2
D-E	$4,278	$3,174	$1,327	$566	$528	$499	$301	$317
F-G	$3,030	$1,981	$959	$418	$440	$426	$322	$310
H-I	-	$1,569	$991	$346	$446	$393	$471	-
J-K	-	-	-	$668	$6,618	$1,233	$14K	$13K
N+	-	-	$763	$608	$581	$530	$419	$321

Price by Colour & Clarity

Average price per carat for 5.00ct+ lab grown radiant diamonds by colour and clarity grade.

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	1,249	$5,965 AUD	124%
D-E	IF	1,079	$4,425 AUD	94%
D-E	SI1	229	$419 AUD	159%
D-E	SI2	21	$442 AUD	171%
D-E	VS1	20,464	$735 AUD	109%
D-E	VS2	2,991	$695 AUD	132%
D-E	VVS1	4,482	$1,850 AUD	114%
D-E	VVS2	31,296	$789 AUD	109%
F-G	FL	19	$4,224 AUD	144%
F-G	IF	146	$2,761 AUD	97%
F-G	SI1	457	$448 AUD	158%
F-G	SI2	20	$433 AUD	175%
F-G	VS1	23,472	$614 AUD	112%
F-G	VS2	4,481	$594 AUD	124%
F-G	VVS1	1,011	$1,337 AUD	99%
F-G	VVS2	29,357	$583 AUD	129%
H-I	IF	21	$2,188 AUD	67%
H-I	SI1	40	$657 AUD	140%
H-I	VS1	1,113	$622 AUD	114%
H-I	VS2	217	$548 AUD	206%
H-I	VVS1	15	$1,381 AUD	98%
H-I	VVS2	827	$483 AUD	140%
J-K	SI1	17	$19,527 AUD	44%
J-K	SI2	12	$18,140 AUD	42%
J-K	VS1	10	$9,227 AUD	160%
J-K	VS2	37	$1,719 AUD	26%
J-K	VVS2	10	$931 AUD	48%
N+	SI1	474	$584 AUD	93%
N+	SI2	37	$448 AUD	113%
N+	VS1	5,908	$810 AUD	104%
N+	VS2	2,997	$739 AUD	102%
N+	VVS1	50	$1,064 AUD	96%
N+	VVS2	2,854	$847 AUD	102%
N+	other	1,056	$2,998 AUD	10%

Explore by Specification

D FL D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 D SI2 E FL E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 E SI2 F FL F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 F SI2 G FL G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 G SI2 H FL H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 H SI2 I FL I IF I VVS1 I VVS2 I VS1 I VS2 I SI1 I SI2 J FL J IF J VVS1 J VVS2 J VS1 J VS2 J SI1 J SI2