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 HK$1,322 HKD/ct to HK$128,385 HKD/ct, with an average of HK$10,647 HKD/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 HK$1,322 HKD per carat and the highest is HK$128,385 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 376,279 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 376,279 lab grown radiant diamonds between 3.00 to 4.99ct listed by at least 53 retailers. A typical stone in this range costs about HK$40,459 HKD in total, or HK$10,647 HKD per carat, and most listings sit between HK$1,322 HKD and HK$128,385 HKD 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 HK$3,374 HKD per carat across 34,117 listings. The same shape in natural form runs about HK$91,293 HKD per carat, roughly 8.6 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 376,279 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$2,208	$1,531	$1,052	$498	$471	$487	$366	$330	-
F-G	$2,197	$1,151	$664	$439	$447	$442	$375	$959	-
H-I	-	$1,011	$1,467	$436	$438	$889	$748	$13K	-
J-K	-	-	-	-	$982	$1,287	$1,422	$3,449	$6,201
N+	-	$2,425	$575	$507	$472	$449	$378	$333	-

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	13,579	HK$16,988 HKD	127%
D-E	IF	21,730	HK$11,780 HKD	123%
D-E	SI1	688	HK$2,818 HKD	241%
D-E	SI2	44	HK$2,542 HKD	197%
D-E	VS1	71,574	HK$3,621 HKD	102%
D-E	VS2	10,714	HK$3,744 HKD	138%
D-E	VVS1	36,478	HK$8,090 HKD	131%
D-E	VVS2	125,152	HK$3,829 HKD	109%
F-G	FL	73	HK$16,900 HKD	105%
F-G	IF	900	HK$8,855 HKD	111%
F-G	SI1	687	HK$2,886 HKD	163%
F-G	SI2	29	HK$7,374 HKD	149%
F-G	VS1	25,461	HK$3,439 HKD	130%
F-G	VS2	5,467	HK$3,401 HKD	152%
F-G	VVS1	2,992	HK$5,109 HKD	163%
F-G	VVS2	34,117	HK$3,374 HKD	117%
F-G	other	20	HK$3,683 HKD	130%
H-I	IF	25	HK$7,774 HKD	90%
H-I	SI1	168	HK$5,752 HKD	121%
H-I	SI2	21	HK$101,147 HKD	63%
H-I	VS1	2,324	HK$3,368 HKD	174%
H-I	VS2	693	HK$6,840 HKD	93%
H-I	VVS1	155	HK$11,285 HKD	43%
H-I	VVS2	950	HK$3,353 HKD	190%
J-K	I	45	HK$47,699 HKD	4%
J-K	SI1	26	HK$10,935 HKD	58%
J-K	SI2	20	HK$26,528 HKD	173%
J-K	VS1	45	HK$7,553 HKD	132%
J-K	VS2	70	HK$9,902 HKD	45%
N+	IF	79	HK$18,653 HKD	2%
N+	SI1	606	HK$2,906 HKD	86%
N+	SI2	68	HK$2,565 HKD	92%
N+	VS1	9,762	HK$3,630 HKD	87%
N+	VS2	4,351	HK$3,455 HKD	86%
N+	VVS1	245	HK$4,427 HKD	83%
N+	VVS2	5,387	HK$3,901 HKD	85%
N+	other	1,534	HK$15,722 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