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

As of September 2026, 5.00ct+ lab grown radiant diamonds range from $211 SGD/ct to $28,065 SGD/ct, with an average of $1,906 SGD/ct.

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

As of September 2026, the lowest listed price is $211 SGD per carat and the highest is $28,065 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 135,745 active lab grown radiant listings between 5.00ct+ across 100+ retailers in the Carat Hunter index, refreshed daily.

Lab Grown Radiant Diamonds, 5.00ct+

Quick answer

As of September 2026, there are 135,745 lab grown radiant diamonds between 5.00ct+ listed by at least 48 retailers. A typical stone in this range costs about $11,434 SGD in total, or $1,906 SGD per carat, and most listings sit between $211 SGD and $28,065 SGD per carat. The best value grade combination with real depth of stock is F to G VVS2 at $553 SGD per carat across 29,195 listings. The same shape in natural form runs about $24,564 SGD per carat, roughly 12.9 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 135,745 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2
D-E	$4,278	$3,174	$1,328	$563	$517	$496	$294	$317
F-G	$3,030	$1,981	$927	$415	$439	$425	$369	$310
H-I	-	$1,569	$991	$342	$441	$603	$471	-
J-K	-	-	-	$668	$6,618	$1,233	$14K	$13K
N+	-	-	$744	$597	$556	$512	$411	$303

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	1,250	$5,704 SGD	109%
D-E	IF	1,078	$4,232 SGD	93%
D-E	SI1	228	$392 SGD	162%
D-E	SI2	21	$422 SGD	171%
D-E	VS1	20,358	$689 SGD	111%
D-E	VS2	2,973	$661 SGD	132%
D-E	VVS1	4,438	$1,771 SGD	113%
D-E	VVS2	31,123	$750 SGD	110%
F-G	FL	19	$4,040 SGD	144%
F-G	IF	146	$2,641 SGD	97%
F-G	SI1	457	$493 SGD	144%
F-G	SI2	20	$414 SGD	175%
F-G	VS1	23,335	$586 SGD	112%
F-G	VS2	4,440	$566 SGD	124%
F-G	VVS1	1,005	$1,236 SGD	103%
F-G	VVS2	29,195	$553 SGD	130%
H-I	IF	21	$2,092 SGD	64%
H-I	SI1	40	$628 SGD	140%
H-I	VS1	1,108	$589 SGD	108%
H-I	VS2	225	$804 SGD	67%
H-I	VVS1	15	$1,321 SGD	101%
H-I	VVS2	820	$456 SGD	145%
J-K	SI1	17	$18,675 SGD	44%
J-K	SI2	12	$17,348 SGD	42%
J-K	VS1	10	$8,824 SGD	160%
J-K	VS2	37	$1,644 SGD	26%
J-K	VVS2	10	$890 SGD	48%
N+	SI1	475	$548 SGD	90%
N+	SI2	37	$404 SGD	120%
N+	VS1	5,909	$741 SGD	109%
N+	VS2	2,998	$683 SGD	106%
N+	VVS1	50	$992 SGD	98%
N+	VVS2	2,855	$797 SGD	101%
N+	other	1,020	$2,869 SGD	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