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

As of September 2026, 3.00 to 4.99ct lab grown marquise diamonds range from HK$1,066 HKD/ct to HK$107,637 HKD/ct, with an average of HK$8,793 HKD/ct.

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

As of September 2026, the lowest listed price is HK$1,066 HKD per carat and the highest is HK$107,637 HKD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

How many 3.00 to 4.99ct lab grown marquise diamonds are available?

There are 171,970 active lab grown marquise listings between 3.00 to 4.99ct across 100+ retailers in the Carat Hunter index, refreshed daily.

Lab Grown Marquise Diamonds, 3.00 to 4.99ct

Quick answer

As of September 2026, there are 171,970 lab grown marquise diamonds between 3.00 to 4.99ct listed by at least 55 retailers. A typical stone in this range costs about HK$33,415 HKD in total, or HK$8,793 HKD per carat, and most listings sit between HK$1,066 HKD and HK$107,637 HKD per carat. The best value grade combination with real depth of stock is F to G VS1 at HK$3,295 HKD per carat across 26,295 listings. The same shape in natural form runs about HK$124,908 HKD per carat, roughly 14.2 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. Marquise lab grown stones in the index: 500 USD per carat, -14.7% 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 171,970 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2
D-E	$3,708	$3,084	$907	$507	$487	$447	$343	$337
F-G	$1,840	$1,526	$678	$421	$420	$437	$332	$409
H-I	-	$1,630	$1,110	$369	$350	$918	$1,836	$6,938
J-K	-	-	-	-	-	$1,838	$2,544	-
N+	-	$1,544	$823	$568	$524	$529	$400	$261

Price by Colour & Clarity

Average price per carat for 3.00 to 4.99ct lab grown marquise diamonds by colour and clarity grade.

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	2,685	HK$29,089 HKD	86%
D-E	IF	2,920	HK$24,189 HKD	93%
D-E	SI1	253	HK$2,693 HKD	76%
D-E	SI2	22	HK$2,642 HKD	78%
D-E	VS1	25,520	HK$3,824 HKD	109%
D-E	VS2	7,165	HK$3,505 HKD	117%
D-E	VVS1	12,362	HK$7,113 HKD	112%
D-E	VVS2	43,658	HK$3,980 HKD	117%
F-G	FL	22	HK$14,432 HKD	113%
F-G	IF	130	HK$11,968 HKD	100%
F-G	SI1	423	HK$2,607 HKD	87%
F-G	SI2	12	HK$3,209 HKD	218%
F-G	VS1	26,295	HK$3,295 HKD	103%
F-G	VS2	4,052	HK$3,425 HKD	136%
F-G	VVS1	2,837	HK$5,317 HKD	128%
F-G	VVS2	35,232	HK$3,306 HKD	115%
H-I	IF	16	HK$12,784 HKD	130%
H-I	SI1	87	HK$14,399 HKD	49%
H-I	SI2	10	HK$54,428 HKD	93%
H-I	VS1	1,284	HK$2,746 HKD	201%
H-I	VS2	391	HK$7,199 HKD	82%
H-I	VVS1	190	HK$8,705 HKD	145%
H-I	VVS2	1,344	HK$2,894 HKD	224%
J-K	SI1	51	HK$19,953 HKD	2%
J-K	VS2	31	HK$14,418 HKD	7%
N+	IF	12	HK$12,110 HKD	83%
N+	SI1	126	HK$3,139 HKD	91%
N+	SI2	17	HK$2,050 HKD	112%
N+	VS1	1,983	HK$4,107 HKD	89%
N+	VS2	820	HK$4,146 HKD	85%
N+	VVS1	88	HK$6,455 HKD	97%
N+	VVS2	1,511	HK$4,456 HKD	85%
N+	other	421	HK$17,227 HKD	16%

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