How much does a 3.00 to 4.99ct lab grown radiant diamond cost?

As of September 2026, 3.00 to 4.99ct lab grown radiant diamonds range from $264 AUD/ct to $25,677 AUD/ct, with an average of $2,129 AUD/ct.

What is the price range for 3.00 to 4.99ct lab grown radiant diamonds?

As of September 2026, the lowest listed price is $264 AUD per carat and the highest is $25,677 AUD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

How many 3.00 to 4.99ct lab grown radiant diamonds are available?

There are 376,279 active lab grown radiant listings between 3.00 to 4.99ct across 100+ retailers in the Carat Hunter index, refreshed daily.

How much can I save by comparing retailers for a 3.00 to 4.99ct lab grown radiant diamond?

Approximately 17% of these diamonds are available at multiple retailers, with an average price spread of 111% between the cheapest and most expensive listing of the same stone.

Lab Grown Radiant Diamonds, 3.00 to 4.99ct

Quick answer

As of September 2026, there are 376,279 lab grown radiant diamonds between 3.00 to 4.99ct listed by at least 53 retailers. A typical stone in this range costs about $8,092 AUD in total, or $2,129 AUD per carat, and most listings sit between $264 AUD and $25,677 AUD per carat. About 17% of these stones are listed by more than one retailer, and the same stone is priced 111% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is F to G VVS2 at $675 AUD per carat across 34,117 listings. The same shape in natural form runs about $18,259 AUD per carat, roughly 8.6 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 376,279 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$2,208	$1,531	$1,052	$498	$471	$487	$366	$330	-
F-G	$2,197	$1,151	$664	$439	$447	$442	$375	$959	-
H-I	-	$1,011	$1,467	$436	$438	$889	$748	$13K	-
J-K	-	-	-	-	$982	$1,287	$1,422	$3,449	$6,201
N+	-	$2,425	$575	$507	$472	$449	$378	$333	-

Price by Colour & Clarity

Average price per carat for 3.00 to 4.99ct lab grown radiant diamonds by colour and clarity grade.

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	13,579	$3,398 AUD	127%
D-E	IF	21,730	$2,356 AUD	123%
D-E	SI1	688	$564 AUD	241%
D-E	SI2	44	$508 AUD	197%
D-E	VS1	71,574	$724 AUD	102%
D-E	VS2	10,714	$749 AUD	138%
D-E	VVS1	36,478	$1,618 AUD	131%
D-E	VVS2	125,152	$766 AUD	109%
F-G	FL	73	$3,380 AUD	105%
F-G	IF	900	$1,771 AUD	111%
F-G	SI1	687	$577 AUD	163%
F-G	SI2	29	$1,475 AUD	149%
F-G	VS1	25,461	$688 AUD	130%
F-G	VS2	5,467	$680 AUD	152%
F-G	VVS1	2,992	$1,022 AUD	163%
F-G	VVS2	34,117	$675 AUD	117%
F-G	other	20	$737 AUD	130%
H-I	IF	25	$1,555 AUD	90%
H-I	SI1	168	$1,150 AUD	121%
H-I	SI2	21	$20,229 AUD	63%
H-I	VS1	2,324	$674 AUD	174%
H-I	VS2	693	$1,368 AUD	93%
H-I	VVS1	155	$2,257 AUD	43%
H-I	VVS2	950	$671 AUD	190%
J-K	I	45	$9,540 AUD	4%
J-K	SI1	26	$2,187 AUD	58%
J-K	SI2	20	$5,306 AUD	173%
J-K	VS1	45	$1,511 AUD	132%
J-K	VS2	70	$1,980 AUD	45%
N+	IF	79	$3,731 AUD	2%
N+	SI1	606	$581 AUD	86%
N+	SI2	68	$513 AUD	92%
N+	VS1	9,762	$726 AUD	87%
N+	VS2	4,351	$691 AUD	86%
N+	VVS1	245	$885 AUD	83%
N+	VVS2	5,387	$780 AUD	85%
N+	other	1,534	$3,144 AUD	12%

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