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

As of November 2026, 3.00 to 4.99ct lab grown marquise diamonds range from €123 EUR/ct to €6,515 EUR/ct, with an average of €740 EUR/ct.

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

As of November 2026, the lowest listed price is €123 EUR per carat and the highest is €6,515 EUR 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 376,584 active lab grown marquise 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 marquise diamond?

Approximately 43% of these diamonds are available at multiple retailers, with an average price spread of 91% between the cheapest and most expensive listing of the same stone.

Lab Grown Marquise Diamonds, 3.00 to 4.99ct

Quick answer

As of November 2026, there are 376,584 listings of lab grown marquise diamonds between 3.00 to 4.99ct from at least 61 retailers. A typical stone in this range costs about €2,812 EUR in total, or €740 EUR per carat, and most listings sit between €123 EUR and €6,515 EUR per carat. About 43% of these stones are listed by more than one retailer, and the same stone is priced 91% 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 €417 EUR per carat across 55,827 listings. The same shape in natural form runs about €14,756 EUR per carat, roughly 19.9 times more.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Marquise lab grown stones in the index: 505 USD per carat, +1.6% 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: November 2026

Browse 376,584 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$3,030	$2,233	$767	$553	$509	$505	$416	$316	-
F-G	$1,931	$1,128	$600	$466	$479	$511	$412	$429	-
H-I	-	$1,564	$1,387	$708	$586	$682	$309	-	-
J-K	-	-	-	$505	$619	-	-	-	-
L-M	-	-	-	$536	$538	-	-	-	-
N+	-	$2,047	$578	$447	$433	$426	$331	$255	$399

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	3,365	€2,710 EUR	71%
D-E	IF	4,963	€1,998 EUR	92%
D-E	SI1	537	€372 EUR	104%
D-E	SI2	32	€283 EUR	92%
D-E	VS1	65,608	€455 EUR	115%
D-E	VS2	13,496	€452 EUR	102%
D-E	VVS1	39,958	€686 EUR	104%
D-E	VVS2	106,436	€495 EUR	109%
F-G	FL	38	€1,727 EUR	83%
F-G	IF	323	€1,009 EUR	90%
F-G	SI1	681	€368 EUR	105%
F-G	SI2	46	€384 EUR	71%
F-G	VS1	44,996	€428 EUR	110%
F-G	VS2	9,708	€457 EUR	95%
F-G	VVS1	7,052	€537 EUR	109%
F-G	VVS2	55,827	€417 EUR	119%
H-I	IF	25	€1,399 EUR	98%
H-I	SI1	16	€277 EUR	13%
H-I	VS1	1,376	€524 EUR	87%
H-I	VS2	399	€610 EUR	89%
H-I	VVS1	188	€1,241 EUR	66%
H-I	VVS2	1,335	€634 EUR	103%
J-K	VS1	12	€553 EUR	81%
J-K	VVS2	46	€452 EUR	81%
L-M	VS1	46	€481 EUR	59%
L-M	VVS2	48	€479 EUR	71%
N+	I	11	€357 EUR	58%
N+	IF	10	€1,831 EUR	5%
N+	SI1	598	€297 EUR	107%
N+	SI2	37	€228 EUR	155%
N+	VS1	8,492	€388 EUR	107%
N+	VS2	3,688	€381 EUR	111%
N+	VVS1	299	€517 EUR	101%
N+	VVS2	6,216	€399 EUR	107%
N+	other	676	€1,687 EUR	17%

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