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$107,622 HKD/ct, with an average of HK$8,801 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$107,622 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 167,450 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 167,450 lab grown marquise diamonds between 3.00 to 4.99ct listed by at least 54 retailers. A typical stone in this range costs about HK$33,442 HKD in total, or HK$8,801 HKD per carat, and most listings sit between HK$1,066 HKD and HK$107,622 HKD per carat. The best value grade combination with real depth of stock is F to G VS1 at HK$3,316 HKD per carat across 25,628 listings. The same shape in natural form runs about HK$125,475 HKD per carat, roughly 14.3 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 167,450 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2
D-E	$3,722	$3,058	$907	$517	$495	$468	$343	$337
F-G	$1,840	$1,526	$683	$426	$423	$443	$334	$409
H-I	-	$1,630	$1,110	$369	$354	$913	$1,836	$6,938
J-K	-	-	-	-	-	$1,838	$2,544	-
N+	-	$1,544	$799	$573	$529	$527	$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	2,673	HK$29,191 HKD	86%
D-E	IF	2,899	HK$23,981 HKD	95%
D-E	SI1	252	HK$2,693 HKD	77%
D-E	SI2	22	HK$2,641 HKD	78%
D-E	VS1	24,229	HK$3,880 HKD	112%
D-E	VS2	6,899	HK$3,671 HKD	113%
D-E	VVS1	12,249	HK$7,111 HKD	114%
D-E	VVS2	42,647	HK$4,055 HKD	117%
F-G	FL	22	HK$14,430 HKD	113%
F-G	IF	130	HK$11,966 HKD	104%
F-G	SI1	419	HK$2,621 HKD	87%
F-G	SI2	12	HK$3,209 HKD	218%
F-G	VS1	25,628	HK$3,316 HKD	104%
F-G	VS2	3,882	HK$3,478 HKD	145%
F-G	VVS1	2,803	HK$5,354 HKD	126%
F-G	VVS2	34,369	HK$3,340 HKD	114%
H-I	IF	16	HK$12,783 HKD	130%
H-I	SI1	86	HK$14,397 HKD	49%
H-I	SI2	10	HK$54,420 HKD	93%
H-I	VS1	1,280	HK$2,777 HKD	201%
H-I	VS2	388	HK$7,157 HKD	83%
H-I	VVS1	189	HK$8,710 HKD	145%
H-I	VVS2	1,323	HK$2,895 HKD	224%
J-K	SI1	51	HK$19,951 HKD	2%
J-K	VS2	31	HK$14,416 HKD	7%
N+	IF	12	HK$12,108 HKD	83%
N+	SI1	126	HK$3,139 HKD	91%
N+	SI2	17	HK$2,049 HKD	112%
N+	VS1	1,965	HK$4,149 HKD	88%
N+	VS2	812	HK$4,136 HKD	85%
N+	VVS1	85	HK$6,265 HKD	103%
N+	VVS2	1,503	HK$4,497 HKD	86%
N+	other	421	HK$17,224 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