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 €150 EUR/ct to €14,102 EUR/ct, with an average of €1,229 EUR/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 €150 EUR per carat and the highest is €14,102 EUR 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 378,115 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 378,115 lab grown radiant diamonds between 3.00 to 4.99ct listed by at least 53 retailers. A typical stone in this range costs about €4,669 EUR in total, or €1,229 EUR per carat, and most listings sit between €150 EUR and €14,102 EUR 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 €382 EUR per carat across 34,226 listings. The same shape in natural form runs about €10,724 EUR per carat, roughly 8.7 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 378,115 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$2,290	$1,557	$1,057	$501	$474	$489	$366	$303	-
F-G	$2,206	$1,201	$666	$441	$453	$446	$377	$959	-
H-I	-	$1,114	$1,467	$441	$435	$897	$1,399	$13K	-
J-K	-	-	-	-	$1,025	$1,386	$1,448	$3,449	$6,201
N+	-	$2,425	$614	$525	$493	$461	$394	$366	-

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	13,922	€1,983 EUR	124%
D-E	IF	21,762	€1,348 EUR	123%
D-E	SI1	690	€317 EUR	241%
D-E	SI2	39	€262 EUR	97%
D-E	VS1	71,705	€411 EUR	101%
D-E	VS2	10,770	€423 EUR	136%
D-E	VVS1	36,712	€915 EUR	130%
D-E	VVS2	125,676	€434 EUR	109%
F-G	FL	77	€1,910 EUR	116%
F-G	IF	934	€1,039 EUR	115%
F-G	SI1	691	€326 EUR	166%
F-G	SI2	30	€830 EUR	392%
F-G	VS1	25,557	€392 EUR	128%
F-G	VS2	5,478	€386 EUR	151%
F-G	VVS1	3,004	€577 EUR	163%
F-G	VVS2	34,226	€382 EUR	115%
F-G	other	20	€414 EUR	130%
H-I	IF	36	€964 EUR	57%
H-I	SI1	233	€1,211 EUR	110%
H-I	SI2	21	€11,384 EUR	63%
H-I	VS1	2,367	€377 EUR	167%
H-I	VS2	714	€776 EUR	95%
H-I	VVS1	155	€1,270 EUR	39%
H-I	VVS2	955	€381 EUR	187%
J-K	I	45	€5,368 EUR	4%
J-K	SI1	31	€1,253 EUR	104%
J-K	SI2	20	€2,986 EUR	173%
J-K	VS1	51	€887 EUR	114%
J-K	VS2	88	€1,200 EUR	46%
N+	IF	79	€2,099 EUR	2%
N+	SI1	607	€341 EUR	84%
N+	SI2	68	€317 EUR	84%
N+	VS1	9,767	€427 EUR	85%
N+	VS2	4,349	€399 EUR	85%
N+	VVS1	246	€532 EUR	85%
N+	VVS2	5,393	€454 EUR	86%
N+	other	1,597	€1,769 EUR	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