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

As of November 2026, 3.00 to 4.99ct lab grown radiant diamonds range from $144 NZD/ct to $7,856 NZD/ct, with an average of $1,243 NZD/ct.

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

As of November 2026, the lowest listed price is $144 NZD per carat and the highest is $7,856 NZD 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 531,249 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 42% of these diamonds are available at multiple retailers, with an average price spread of 96% between the cheapest and most expensive listing of the same stone.

Lab Grown Radiant Diamonds, 3.00 to 4.99ct

Quick answer

As of November 2026, there are 531,249 listings of lab grown radiant diamonds between 3.00 to 4.99ct from at least 62 retailers. A typical stone in this range costs about $4,724 NZD in total, or $1,243 NZD per carat, and most listings sit between $144 NZD and $7,856 NZD per carat. About 42% of these stones are listed by more than one retailer, and the same stone is priced 96% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is F to G VS2 at $777 NZD per carat across 8,810 listings. The same shape in natural form runs about $23,013 NZD per carat, roughly 18.5 times more.

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

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Radiant lab grown stones in the index: 489 USD per carat, -0.7% month on month. See the full index release

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

Last updated: November 2026

Browse 531,249 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$1,631	$1,238	$934	$583	$528	$479	$409	$282	-
F-G	$1,731	$943	$653	$513	$480	$437	$375	$462	-
H-I	-	$1,132	$1,341	$446	$417	$556	$442	-	$164
J-K	-	-	-	-	$447	$641	$1,350	-	-
L-M	-	-	-	$508	$410	-	-	-	-
N+	-	$2,133	$543	$462	$405	$367	$302	$287	$192

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	18,959	$2,900 NZD	90%
D-E	IF	35,215	$2,201 NZD	98%
D-E	SI1	1,168	$726 NZD	101%
D-E	SI2	91	$501 NZD	104%
D-E	VS1	87,234	$939 NZD	99%
D-E	VS2	15,676	$852 NZD	98%
D-E	VVS1	62,513	$1,661 NZD	89%
D-E	VVS2	136,090	$1,037 NZD	108%
F-G	FL	114	$3,077 NZD	63%
F-G	IF	1,381	$1,677 NZD	93%
F-G	SI1	1,171	$667 NZD	100%
F-G	SI2	71	$822 NZD	106%
F-G	VS1	36,251	$853 NZD	95%
F-G	VS2	8,810	$777 NZD	97%
F-G	VVS1	4,620	$1,162 NZD	108%
F-G	VVS2	36,663	$911 NZD	98%
H-I	I	11	$291 NZD	84%
H-I	IF	61	$2,013 NZD	78%
H-I	SI1	224	$785 NZD	116%
H-I	VS1	3,052	$742 NZD	113%
H-I	VS2	1,215	$989 NZD	113%
H-I	VVS1	235	$2,383 NZD	81%
H-I	VVS2	1,400	$794 NZD	122%
J-K	SI1	16	$2,400 NZD	78%
J-K	VS1	64	$795 NZD	87%
J-K	VS2	71	$1,140 NZD	86%
L-M	VS1	18	$729 NZD	70%
L-M	VVS2	15	$902 NZD	49%
N+	I	18	$342 NZD	115%
N+	IF	114	$3,793 NZD	52%
N+	SI1	2,539	$536 NZD	122%
N+	SI2	332	$511 NZD	123%
N+	VS1	37,488	$721 NZD	112%
N+	VS2	17,344	$653 NZD	117%
N+	VVS1	799	$965 NZD	103%
N+	VVS2	18,037	$822 NZD	102%
N+	other	2,169	$3,150 NZD	14%

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