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

As of September 2026, 1.00 to 1.49ct lab grown marquise diamonds range from $400 NZD/ct to $9,488 NZD/ct, with an average of $1,740 NZD/ct.

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

As of September 2026, the lowest listed price is $400 NZD per carat and the highest is $9,488 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 351,390 active lab grown marquise listings between 1.00 to 1.49ct across 100+ retailers in the Carat Hunter index, refreshed daily.

Lab Grown Marquise Diamonds, 1.00 to 1.49ct

Quick answer

As of September 2026, there are 351,390 lab grown marquise diamonds between 1.00 to 1.49ct listed by at least 59 retailers. A typical stone in this range costs about $2,088 NZD in total, or $1,740 NZD per carat, and most listings sit between $400 NZD and $9,488 NZD per carat. The best value grade combination with real depth of stock is D to E VS1 at $709 NZD per carat across 85,255 listings. The same shape in natural form runs about $7,716 NZD per carat, roughly 4.4 times more.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Marquise lab grown stones in the index: 500 USD per carat, -14.7% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Browse 351,390 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$974	$920	$532	$441	$413	$444	$362	$344	$1,732
F-G	$623	$697	$522	$455	$457	$458	$397	$2,162	$2,238
H-I	-	$4,018	$812	$629	$717	$926	$1,372	$1,792	$1,892
J-K	-	$2,198	$1,782	$1,751	$927	$1,367	$1,460	$1,520	$2,075
L-M	-	-	-	$719	$427	-	-	$1,293	-
N+	-	$1,752	$778	$660	$592	$598	$690	$472	-

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	19,854	$1,673 NZD	130%
D-E	I	17	$2,976 NZD	37%
D-E	IF	17,762	$1,580 NZD	103%
D-E	SI1	736	$622 NZD	73%
D-E	SI2	37	$591 NZD	100%
D-E	VS1	85,255	$709 NZD	80%
D-E	VS2	16,830	$762 NZD	85%
D-E	VVS1	44,265	$914 NZD	89%
D-E	VVS2	115,291	$758 NZD	83%
F-G	FL	42	$1,071 NZD	82%
F-G	I	10	$3,844 NZD	86%
F-G	IF	275	$1,198 NZD	104%
F-G	SI1	309	$681 NZD	56%
F-G	SI2	25	$3,715 NZD	75%
F-G	VS1	13,367	$784 NZD	85%
F-G	VS2	2,295	$787 NZD	80%
F-G	VVS1	3,050	$896 NZD	84%
F-G	VVS2	19,903	$782 NZD	77%
H-I	I	18	$3,250 NZD	72%
H-I	IF	24	$6,903 NZD	55%
H-I	SI1	231	$2,357 NZD	34%
H-I	SI2	41	$3,078 NZD	53%
H-I	VS1	970	$1,232 NZD	140%
H-I	VS2	415	$1,591 NZD	65%
H-I	VVS1	114	$1,395 NZD	55%
H-I	VVS2	581	$1,080 NZD	79%
J-K	I	15	$3,565 NZD	54%
J-K	IF	10	$3,776 NZD	35%
J-K	SI1	169	$2,508 NZD	2%
J-K	SI2	25	$2,612 NZD	24%
J-K	VS1	64	$1,592 NZD	70%
J-K	VS2	84	$2,348 NZD	7%
J-K	VVS1	10	$3,061 NZD	99%
J-K	VVS2	14	$3,009 NZD	28%
L-M	SI2	12	$2,222 NZD	19%
L-M	VS1	12	$733 NZD	60%
L-M	VVS2	11	$1,234 NZD	29%
N+	IF	95	$3,011 NZD	6%
N+	SI1	222	$1,185 NZD	97%
N+	SI2	39	$811 NZD	73%
N+	VS1	3,370	$1,017 NZD	75%
N+	VS2	1,120	$1,027 NZD	78%
N+	VVS1	238	$1,336 NZD	92%
N+	VVS2	3,140	$1,135 NZD	79%
N+	other	1,023	$2,610 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