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

As of October 2026, 1.00 to 1.49ct lab grown marquise diamonds range from $195 NZD/ct to $5,473 NZD/ct, with an average of $1,093 NZD/ct.

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

As of October 2026, the lowest listed price is $195 NZD per carat and the highest is $5,473 NZD 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 422,401 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 94% between the cheapest and most expensive listing of the same stone.

Lab Grown Marquise Diamonds, 1.00 to 1.49ct

Quick answer

As of October 2026, there are 422,401 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 $1,312 NZD in total, or $1,093 NZD per carat, and most listings sit between $195 NZD and $5,473 NZD per carat. About 42% of these stones are listed by more than one retailer, and the same stone is priced 94% 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 $835 NZD per carat across 80,620 listings. The same shape in natural form runs about $7,974 NZD per carat, roughly 7.3 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 422,401 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$739	$737	$537	$481	$469	$472	$385	$310	-
F-G	$701	$608	$535	$506	$475	$465	$405	-	-
H-I	-	-	$785	$618	$718	$691	$919	-	-
J-K	-	-	-	$742	$495	-	-	$992	-
L-M	-	-	-	$624	$530	-	-	-	-
N+	-	$1,354	$626	$488	$466	$460	$494	$379	$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	28,578	$1,315 NZD	119%
D-E	IF	31,805	$1,313 NZD	114%
D-E	SI1	1,182	$685 NZD	78%
D-E	SI2	41	$551 NZD	96%
D-E	VS1	80,620	$835 NZD	74%
D-E	VS2	17,998	$840 NZD	60%
D-E	VVS1	61,516	$956 NZD	93%
D-E	VVS2	124,280	$857 NZD	88%
F-G	FL	43	$1,249 NZD	106%
F-G	IF	449	$1,082 NZD	115%
F-G	SI1	453	$721 NZD	70%
F-G	VS1	15,088	$846 NZD	66%
F-G	VS2	3,506	$828 NZD	69%
F-G	VVS1	4,421	$952 NZD	79%
F-G	VVS2	21,207	$902 NZD	67%
H-I	SI1	166	$1,636 NZD	125%
H-I	VS1	1,335	$1,278 NZD	85%
H-I	VS2	388	$1,231 NZD	63%
H-I	VVS1	142	$1,398 NZD	51%
H-I	VVS2	657	$1,101 NZD	64%
J-K	SI2	10	$1,767 NZD	57%
J-K	VS1	55	$882 NZD	83%
J-K	VVS2	20	$1,322 NZD	154%
L-M	VS1	21	$944 NZD	83%
L-M	VVS2	27	$1,110 NZD	53%
N+	I	69	$428 NZD	160%
N+	IF	188	$2,411 NZD	83%
N+	SI1	812	$880 NZD	166%
N+	SI2	184	$675 NZD	124%
N+	VS1	11,509	$829 NZD	130%
N+	VS2	3,956	$819 NZD	127%
N+	VVS1	737	$1,115 NZD	129%
N+	VVS2	9,842	$869 NZD	124%
N+	other	1,096	$2,656 NZD	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