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

As of November 2026, 1.00 to 1.49ct lab grown cushion diamonds range from $310 NZD/ct to $8,433 NZD/ct, with an average of $1,196 NZD/ct.

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

As of November 2026, the lowest listed price is $310 NZD per carat and the highest is $8,433 NZD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

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

There are 300,515 active lab grown cushion 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 cushion diamond?

Approximately 39% of these diamonds are available at multiple retailers, with an average price spread of 85% between the cheapest and most expensive listing of the same stone.

Lab Grown Cushion Diamonds, 1.00 to 1.49ct

Quick answer

As of November 2026, there are 300,515 listings of lab grown cushion diamonds between 1.00 to 1.49ct from at least 61 retailers. A typical stone in this range costs about $1,435 NZD in total, or $1,196 NZD per carat, and most listings sit between $310 NZD and $8,433 NZD per carat. About 39% of these stones are listed by more than one retailer, and the same stone is priced 85% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is F to G VS1 at $840 NZD per carat across 13,775 listings. The same shape in natural form runs about $5,906 NZD per carat, roughly 4.9 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. Cushion lab grown stones in the index: 555 USD per carat, +4.5% 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 300,515 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$876	$900	$545	$518	$479	$488	$470	$453	-
F-G	$965	$885	$560	$504	$472	$501	$494	$694	-
H-I	-	-	$762	$594	$543	$615	$561	-	-
J-K	-	-	-	$658	$681	$896	$1,008	-	-
L-M	-	-	-	$401	$654	$684	-	-	-
N+	$1,249	$1,012	$643	$595	$596	$575	$581	$900	$290

Price by Colour & Clarity

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

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	4,775	$1,557 NZD	99%
D-E	IF	6,692	$1,600 NZD	103%
D-E	SI1	1,418	$836 NZD	77%
D-E	SI2	139	$805 NZD	97%
D-E	VS1	71,671	$852 NZD	78%
D-E	VS2	16,515	$868 NZD	69%
D-E	VVS1	39,832	$969 NZD	95%
D-E	VVS2	91,850	$920 NZD	82%
F-G	FL	73	$1,715 NZD	81%
F-G	IF	373	$1,574 NZD	92%
F-G	SI1	624	$878 NZD	70%
F-G	SI2	14	$1,234 NZD	82%
F-G	VS1	13,775	$840 NZD	74%
F-G	VS2	4,538	$891 NZD	71%
F-G	VVS1	2,014	$995 NZD	79%
F-G	VVS2	11,685	$896 NZD	73%
H-I	SI1	45	$996 NZD	87%
H-I	VS1	815	$965 NZD	59%
H-I	VS2	385	$1,093 NZD	53%
H-I	VVS1	157	$1,355 NZD	56%
H-I	VVS2	450	$1,056 NZD	49%
J-K	SI1	15	$1,791 NZD	64%
J-K	VS1	37	$1,211 NZD	67%
J-K	VS2	12	$1,593 NZD	76%
J-K	VVS2	48	$1,169 NZD	41%
L-M	VS1	36	$1,163 NZD	35%
L-M	VS2	16	$1,216 NZD	37%
L-M	VVS2	18	$713 NZD	70%
N+	FL	12	$2,219 NZD	110%
N+	I	46	$515 NZD	84%
N+	IF	224	$1,799 NZD	119%
N+	SI1	1,011	$1,032 NZD	199%
N+	SI2	208	$1,600 NZD	163%
N+	VS1	12,725	$1,060 NZD	114%
N+	VS2	4,458	$1,022 NZD	118%
N+	VVS1	1,655	$1,144 NZD	114%
N+	VVS2	10,078	$1,058 NZD	113%
N+	other	2,076	$2,701 NZD	15%

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