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 HK$657 HKD/ct to HK$37,431 HKD/ct, with an average of HK$5,583 HKD/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 HK$657 HKD per carat and the highest is HK$37,431 HKD 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 HK$21,215 HKD in total, or HK$5,583 HKD per carat, and most listings sit between HK$657 HKD and HK$37,431 HKD 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 HK$3,436 HKD per carat across 8,678 listings. The same shape in natural form runs about HK$98,569 HKD 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	HK$13,037 HKD	90%
D-E	IF	34,909	HK$9,746 HKD	96%
D-E	SI1	1,131	HK$3,207 HKD	101%
D-E	SI2	86	HK$2,242 HKD	95%
D-E	VS1	85,288	HK$4,171 HKD	99%
D-E	VS2	15,418	HK$3,783 HKD	97%
D-E	VVS1	61,600	HK$7,348 HKD	87%
D-E	VVS2	131,183	HK$4,658 HKD	105%
F-G	FL	116	HK$12,727 HKD	69%
F-G	IF	1,430	HK$7,379 HKD	94%
F-G	SI1	1,127	HK$3,008 HKD	97%
F-G	SI2	71	HK$3,628 HKD	106%
F-G	VS1	35,714	HK$3,725 HKD	95%
F-G	VS2	8,678	HK$3,436 HKD	98%
F-G	VVS1	4,527	HK$5,204 HKD	107%
F-G	VVS2	35,867	HK$4,025 HKD	98%
H-I	I	11	HK$1,317 HKD	82%
H-I	IF	103	HK$9,222 HKD	65%
H-I	SI1	235	HK$3,651 HKD	114%
H-I	VS1	3,029	HK$3,400 HKD	113%
H-I	VS2	1,257	HK$4,417 HKD	123%
H-I	VVS1	227	HK$11,021 HKD	74%
H-I	VVS2	1,350	HK$3,507 HKD	121%
J-K	SI1	22	HK$6,635 HKD	123%
J-K	VS1	53	HK$3,785 HKD	79%
J-K	VS2	84	HK$4,876 HKD	99%
J-K	VVS1	12	HK$8,728 HKD	35%
L-M	VS1	18	HK$3,227 HKD	69%
L-M	VVS2	11	HK$3,261 HKD	56%
N+	I	18	HK$1,507 HKD	115%
N+	IF	114	HK$18,666 HKD	57%
N+	SI1	2,403	HK$2,416 HKD	122%
N+	SI2	319	HK$2,275 HKD	122%
N+	VS1	35,004	HK$3,251 HKD	110%
N+	VS2	16,356	HK$2,977 HKD	114%
N+	VVS1	733	HK$4,168 HKD	104%
N+	VVS2	17,027	HK$3,657 HKD	102%
N+	other	1,553	HK$15,737 HKD	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