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 $195 AUD/ct to $10,516 AUD/ct, with an average of $1,217 AUD/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 $195 AUD per carat and the highest is $10,516 AUD 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 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 $4,624 AUD in total, or $1,217 AUD per carat, and most listings sit between $195 AUD and $10,516 AUD 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 $658 AUD per carat across 53,161 listings. The same shape in natural form runs about $20,136 AUD 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

Colour	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 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	3,374	$4,409 AUD	77%
D-E	IF	4,894	$3,197 AUD	93%
D-E	SI1	520	$605 AUD	112%
D-E	SI2	29	$463 AUD	87%
D-E	VS1	58,800	$732 AUD	115%
D-E	VS2	13,170	$719 AUD	102%
D-E	VVS1	36,339	$1,110 AUD	103%
D-E	VVS2	92,344	$799 AUD	112%
F-G	FL	39	$2,698 AUD	91%
F-G	IF	313	$1,679 AUD	87%
F-G	SI1	648	$587 AUD	105%
F-G	SI2	45	$610 AUD	70%
F-G	VS1	43,594	$684 AUD	109%
F-G	VS2	9,907	$717 AUD	97%
F-G	VVS1	6,504	$876 AUD	109%
F-G	VVS2	53,161	$658 AUD	121%
H-I	IF	25	$2,226 AUD	97%
H-I	SI1	16	$440 AUD	13%
H-I	VS1	1,432	$814 AUD	94%
H-I	VS2	408	$990 AUD	88%
H-I	VVS1	194	$1,975 AUD	67%
H-I	VVS2	1,349	$1,006 AUD	108%
J-K	VS1	12	$1,109 AUD	69%
J-K	VVS2	34	$732 AUD	83%
L-M	VS1	35	$787 AUD	61%
L-M	VVS2	49	$762 AUD	70%
N+	I	11	$568 AUD	54%
N+	IF	10	$3,188 AUD	6%
N+	SI1	575	$457 AUD	110%
N+	SI2	39	$416 AUD	123%
N+	VS1	7,810	$627 AUD	106%
N+	VS2	3,387	$626 AUD	108%
N+	VVS1	279	$853 AUD	102%
N+	VVS2	5,708	$654 AUD	104%
N+	other	437	$3,077 AUD	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