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 $192 CAD/ct to $10,340 CAD/ct, with an average of $1,196 CAD/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 $192 CAD per carat and the highest is $10,340 CAD 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 345,491 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 345,491 listings of lab grown marquise diamonds between 3.00 to 4.99ct from at least 62 retailers. A typical stone in this range costs about $4,547 CAD in total, or $1,196 CAD per carat, and most listings sit between $192 CAD and $10,340 CAD 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 $647 CAD per carat across 53,161 listings. The same shape in natural form runs about $19,800 CAD per carat, roughly 16.5 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 345,491 diamonds in Explorer

Price Distribution

LowHigh

Color	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$3,098	$2,246	$780	$561	$514	$505	$425	$325	-
F-G	$1,895	$1,180	$615	$463	$481	$504	$412	$429	-
H-I	-	$1,564	$1,387	$707	$572	$695	$309	-	-
J-K	-	-	-	$514	$779	-	-	-	-
L-M	-	-	-	$535	$553	-	-	-	-
N+	-	$2,240	$599	$460	$440	$440	$321	$292	$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	3,374	$4,336 CAD	77%
D-E	IF	4,894	$3,143 CAD	93%
D-E	SI1	520	$595 CAD	112%
D-E	SI2	29	$455 CAD	87%
D-E	VS1	58,800	$720 CAD	115%
D-E	VS2	13,170	$707 CAD	102%
D-E	VVS1	36,339	$1,091 CAD	103%
D-E	VVS2	92,344	$785 CAD	112%
F-G	FL	39	$2,653 CAD	91%
F-G	IF	313	$1,651 CAD	87%
F-G	SI1	648	$577 CAD	105%
F-G	SI2	45	$600 CAD	70%
F-G	VS1	43,594	$673 CAD	109%
F-G	VS2	9,907	$705 CAD	97%
F-G	VVS1	6,504	$861 CAD	109%
F-G	VVS2	53,161	$647 CAD	121%
H-I	IF	25	$2,189 CAD	97%
H-I	SI1	16	$433 CAD	13%
H-I	VS1	1,432	$800 CAD	94%
H-I	VS2	408	$973 CAD	88%
H-I	VVS1	194	$1,942 CAD	67%
H-I	VVS2	1,349	$989 CAD	108%
J-K	VS1	12	$1,091 CAD	69%
J-K	VVS2	34	$719 CAD	83%
L-M	VS1	35	$774 CAD	61%
L-M	VVS2	49	$749 CAD	70%
N+	I	11	$558 CAD	54%
N+	IF	10	$3,135 CAD	6%
N+	SI1	575	$449 CAD	110%
N+	SI2	39	$409 CAD	123%
N+	VS1	7,810	$616 CAD	106%
N+	VS2	3,387	$616 CAD	108%
N+	VVS1	279	$839 CAD	102%
N+	VVS2	5,708	$643 CAD	104%
N+	other	437	$3,026 CAD	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