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

As of October 2026, 5.00ct+ lab grown radiant diamonds range from $144 SGD/ct to $9,301 SGD/ct, with an average of $903 SGD/ct.

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

As of October 2026, the lowest listed price is $144 SGD per carat and the highest is $9,301 SGD 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 274,503 active lab grown radiant listings between 5.00ct+ across 100+ retailers in the Carat Hunter index, refreshed daily.

How much can I save by comparing retailers for a 5.00ct+ lab grown radiant diamond?

Approximately 51% of these diamonds are available at multiple retailers, with an average price spread of 93% between the cheapest and most expensive listing of the same stone.

Lab Grown Radiant Diamonds, 5.00ct+

Quick answer

As of October 2026, there are 274,503 listings of lab grown radiant diamonds between 5.00ct+ from at least 59 retailers. A typical stone in this range costs about $5,417 SGD in total, or $903 SGD per carat, and most listings sit between $144 SGD and $9,301 SGD per carat. About 51% of these stones are listed by more than one retailer, and the same stone is priced 93% 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 $472 SGD per carat across 53,058 listings. The same shape in natural form runs about $19,602 SGD per carat, roughly 21.7 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 274,503 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$3,561	$2,510	$950	$492	$461	$432	$296	$346	-
F-G	$2,300	$1,738	$710	$368	$389	$410	$272	$391	-
H-I	-	$1,469	$1,439	$373	$460	$498	$345	-	-
J-K	-	-	-	$307	-	-	-	-	-
N+	-	-	$431	$421	$404	$381	$300	$259	$179

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	1,858	$4,565 SGD	92%
D-E	IF	1,719	$3,219 SGD	95%
D-E	SI1	489	$380 SGD	133%
D-E	SI2	31	$443 SGD	129%
D-E	VS1	38,292	$591 SGD	95%
D-E	VS2	7,633	$554 SGD	116%
D-E	VVS1	11,384	$1,218 SGD	82%
D-E	VVS2	48,844	$630 SGD	101%
F-G	FL	28	$2,949 SGD	65%
F-G	IF	252	$2,228 SGD	74%
F-G	SI1	804	$348 SGD	98%
F-G	SI2	32	$501 SGD	100%
F-G	VS1	46,592	$498 SGD	105%
F-G	VS2	10,994	$526 SGD	101%
F-G	VVS1	2,040	$910 SGD	81%
F-G	VVS2	53,058	$472 SGD	113%
H-I	IF	48	$1,883 SGD	69%
H-I	SI1	54	$442 SGD	91%
H-I	VS1	2,442	$590 SGD	91%
H-I	VS2	562	$638 SGD	106%
H-I	VVS1	109	$1,845 SGD	119%
H-I	VVS2	2,025	$478 SGD	117%
J-K	VVS2	18	$393 SGD	114%
N+	I	16	$230 SGD	81%
N+	SI1	1,646	$384 SGD	87%
N+	SI2	118	$333 SGD	85%
N+	VS1	20,492	$519 SGD	100%
N+	VS2	10,873	$489 SGD	87%
N+	VVS1	208	$553 SGD	81%
N+	VVS2	10,817	$540 SGD	95%
N+	other	1,025	$2,761 SGD	13%

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