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

As of October 2026, 3.00 to 4.99ct lab grown radiant diamonds range from $107 SGD/ct to $6,117 SGD/ct, with an average of $912 SGD/ct.

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

As of October 2026, the lowest listed price is $107 SGD per carat and the highest is $6,117 SGD 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 515,714 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 95% between the cheapest and most expensive listing of the same stone.

Lab Grown Radiant Diamonds, 3.00 to 4.99ct

Quick answer

As of October 2026, there are 515,714 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 $3,467 SGD in total, or $912 SGD per carat, and most listings sit between $107 SGD and $6,117 SGD per carat. About 42% of these stones are listed by more than one retailer, and the same stone is priced 95% 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 $561 SGD per carat across 8,678 listings. The same shape in natural form runs about $16,109 SGD per carat, roughly 17.7 times more.

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

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Radiant lab grown stones in the index: 474 USD per carat, -2.1% 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: October 2026

Browse 515,714 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$1,662	$1,242	$937	$594	$532	$482	$409	$286	-
F-G	$1,622	$941	$663	$513	$475	$438	$383	$462	-
H-I	-	$1,176	$1,405	$447	$433	$563	$465	-	$168
J-K	-	-	$1,113	-	$483	$621	$846	-	-
L-M	-	-	-	$416	$411	-	-	-	-
N+	-	$2,379	$531	$466	$414	$379	$308	$290	$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	18,630	$2,131 SGD	90%
D-E	IF	34,909	$1,593 SGD	96%
D-E	SI1	1,131	$524 SGD	101%
D-E	SI2	86	$366 SGD	95%
D-E	VS1	85,288	$682 SGD	99%
D-E	VS2	15,418	$618 SGD	97%
D-E	VVS1	61,600	$1,201 SGD	87%
D-E	VVS2	131,183	$761 SGD	105%
F-G	FL	116	$2,080 SGD	69%
F-G	IF	1,430	$1,206 SGD	94%
F-G	SI1	1,127	$492 SGD	97%
F-G	SI2	71	$593 SGD	106%
F-G	VS1	35,714	$609 SGD	95%
F-G	VS2	8,678	$561 SGD	98%
F-G	VVS1	4,527	$851 SGD	107%
F-G	VVS2	35,867	$658 SGD	98%
H-I	I	11	$215 SGD	82%
H-I	IF	103	$1,507 SGD	65%
H-I	SI1	235	$597 SGD	114%
H-I	VS1	3,029	$556 SGD	113%
H-I	VS2	1,257	$722 SGD	123%
H-I	VVS1	227	$1,801 SGD	74%
H-I	VVS2	1,350	$573 SGD	121%
J-K	SI1	22	$1,084 SGD	123%
J-K	VS1	53	$619 SGD	79%
J-K	VS2	84	$797 SGD	99%
J-K	VVS1	12	$1,426 SGD	35%
L-M	VS1	18	$527 SGD	69%
L-M	VVS2	11	$533 SGD	56%
N+	I	18	$246 SGD	115%
N+	IF	114	$3,051 SGD	57%
N+	SI1	2,403	$395 SGD	122%
N+	SI2	319	$372 SGD	122%
N+	VS1	35,004	$531 SGD	110%
N+	VS2	16,356	$486 SGD	114%
N+	VVS1	733	$681 SGD	104%
N+	VVS2	17,027	$598 SGD	102%
N+	other	1,553	$2,572 SGD	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