How much does a 1.00 to 1.49ct lab grown marquise diamond cost?

As of November 2026, 1.00 to 1.49ct lab grown marquise diamonds range from $157 AUD/ct to $5,051 AUD/ct, with an average of $862 AUD/ct.

What is the price range for 1.00 to 1.49ct lab grown marquise diamonds?

As of November 2026, the lowest listed price is $157 AUD per carat and the highest is $5,051 AUD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

How many 1.00 to 1.49ct lab grown marquise diamonds are available?

There are 421,263 active lab grown marquise listings between 1.00 to 1.49ct across 100+ retailers in the Carat Hunter index, refreshed daily.

How much can I save by comparing retailers for a 1.00 to 1.49ct lab grown marquise diamond?

Approximately 42% of these diamonds are available at multiple retailers, with an average price spread of 95% between the cheapest and most expensive listing of the same stone.

Lab Grown Marquise Diamonds, 1.00 to 1.49ct

Quick answer

As of November 2026, there are 421,263 listings of lab grown marquise diamonds between 1.00 to 1.49ct from at least 58 retailers. A typical stone in this range costs about $1,035 AUD in total, or $862 AUD per carat, and most listings sit between $157 AUD and $5,051 AUD per carat. About 42% of these stones are listed by more than one retailer, and the same stone is priced 95% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is D to E VS1 at $688 AUD per carat across 77,866 listings. The same shape in natural form runs about $6,417 AUD per carat, roughly 7.4 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 421,263 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$737	$744	$540	$493	$482	$498	$392	$312	-
F-G	$686	$609	$537	$528	$484	$463	$405	-	-
H-I	-	-	$781	$622	$722	$690	$845	-	-
J-K	-	-	-	$742	$486	-	-	-	-
L-M	-	-	-	$624	$518	-	-	-	-
N+	-	$1,277	$618	$485	$463	$448	$519	$381	$240

Price by Colour & Clarity

Average price per carat for 1.00 to 1.49ct lab grown marquise diamonds by colour and clarity grade.

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	28,901	$1,052 AUD	117%
D-E	IF	32,188	$1,062 AUD	112%
D-E	SI1	1,174	$559 AUD	75%
D-E	SI2	40	$446 AUD	87%
D-E	VS1	77,866	$688 AUD	73%
D-E	VS2	17,803	$710 AUD	58%
D-E	VVS1	62,771	$770 AUD	92%
D-E	VVS2	122,667	$704 AUD	88%
F-G	FL	40	$979 AUD	112%
F-G	IF	461	$870 AUD	114%
F-G	SI1	453	$578 AUD	64%
F-G	VS1	15,147	$690 AUD	66%
F-G	VS2	3,571	$661 AUD	69%
F-G	VVS1	4,451	$766 AUD	78%
F-G	VVS2	20,912	$753 AUD	65%
H-I	SI1	164	$1,206 AUD	141%
H-I	VS1	1,316	$1,030 AUD	104%
H-I	VS2	395	$985 AUD	72%
H-I	VVS1	145	$1,115 AUD	51%
H-I	VVS2	647	$888 AUD	63%
J-K	VS1	55	$694 AUD	86%
J-K	VVS2	38	$1,059 AUD	124%
L-M	VS1	20	$739 AUD	91%
L-M	VVS2	27	$890 AUD	53%
N+	I	69	$343 AUD	160%
N+	IF	191	$1,823 AUD	87%
N+	SI1	813	$740 AUD	157%
N+	SI2	188	$543 AUD	125%
N+	VS1	12,051	$660 AUD	131%
N+	VS2	4,194	$639 AUD	131%
N+	VVS1	783	$881 AUD	130%
N+	VVS2	10,343	$692 AUD	124%
N+	other	1,379	$2,080 AUD	23%

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