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

As of October 2026, 3.00 to 4.99ct lab grown marquise diamonds range from €123 EUR/ct to €6,628 EUR/ct, with an average of €750 EUR/ct.

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

As of October 2026, the lowest listed price is €123 EUR per carat and the highest is €6,628 EUR per carat. The spread reflects differences in color, clarity, cut and retailer pricing.

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

There are 360,499 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 October 2026, there are 360,499 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 €2,850 EUR in total, or €750 EUR per carat, and most listings sit between €123 EUR and €6,628 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 €409 EUR per carat across 54,683 listings. The same shape in natural form runs about €12,763 EUR per carat, roughly 17.0 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. Marquise lab grown stones in the index: 485 USD per carat, -3.2% 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 360,499 diamonds in Explorer

Price Distribution

LowHigh

Color	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$3,028	$2,222	$762	$547	$509	$504	$411	$325	-
F-G	$1,928	$1,149	$600	$457	$472	$500	$412	$429	-
H-I	-	$1,564	$1,387	$691	$572	$682	$309	-	-
J-K	-	-	-	$504	$619	-	-	-	-
L-M	-	-	-	$535	$539	-	-	-	-
N+	-	$2,240	$575	$454	$438	$435	$321	$258	$399

Price by Color & Clarity

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

Color	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	3,365	€2,711 EUR	72%
D-E	IF	4,924	€1,989 EUR	91%
D-E	SI1	521	€368 EUR	105%
D-E	SI2	33	€291 EUR	87%
D-E	VS1	62,038	€456 EUR	114%
D-E	VS2	13,273	€451 EUR	102%
D-E	VVS1	38,296	€682 EUR	103%
D-E	VVS2	98,959	€490 EUR	112%
F-G	FL	38	€1,726 EUR	83%
F-G	IF	320	€1,028 EUR	89%
F-G	SI1	673	€369 EUR	105%
F-G	SI2	45	€384 EUR	70%
F-G	VS1	44,312	€423 EUR	111%
F-G	VS2	9,890	€448 EUR	98%
F-G	VVS1	6,816	€537 EUR	110%
F-G	VVS2	54,683	€409 EUR	121%
H-I	IF	25	€1,400 EUR	98%
H-I	SI1	16	€277 EUR	13%
H-I	VS1	1,427	€512 EUR	89%
H-I	VS2	403	€610 EUR	90%
H-I	VVS1	192	€1,242 EUR	67%
H-I	VVS2	1,363	€618 EUR	106%
J-K	VS1	12	€554 EUR	81%
J-K	VVS2	45	€451 EUR	84%
L-M	VS1	40	€482 EUR	60%
L-M	VVS2	49	€479 EUR	71%
N+	I	11	€357 EUR	54%
N+	IF	10	€2,005 EUR	6%
N+	SI1	576	€288 EUR	109%
N+	SI2	37	€231 EUR	126%
N+	VS1	8,015	€392 EUR	106%
N+	VS2	3,481	€389 EUR	109%
N+	VVS1	291	€515 EUR	101%
N+	VVS2	5,902	€406 EUR	106%
N+	other	418	€1,941 EUR	19%

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