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

As of October 2026, 1.00 to 1.49ct lab grown cushion diamonds range from HK$1,368 HKD/ct to HK$40,842 HKD/ct, with an average of HK$5,149 HKD/ct.

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

As of October 2026, the lowest listed price is HK$1,368 HKD per carat and the highest is HK$40,842 HKD 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 299,598 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 38% of these diamonds are available at multiple retailers, with an average price spread of 88% between the cheapest and most expensive listing of the same stone.

Lab Grown Cushion Diamonds, 1.00 to 1.49ct

Quick answer

As of October 2026, there are 299,598 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 HK$6,179 HKD in total, or HK$5,149 HKD per carat, and most listings sit between HK$1,368 HKD and HK$40,842 HKD per carat. About 38% of these stones are listed by more than one retailer, and the same stone is priced 88% 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 HK$3,661 HKD per carat across 14,645 listings. The same shape in natural form runs about HK$26,483 HKD per carat, roughly 5.1 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. Cushion lab grown stones in the index: 516 USD per carat, +6.9% 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 299,598 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$880	$887	$536	$502	$471	$479	$454	$464	-
F-G	$960	$888	$549	$482	$467	$479	$473	$568	-
H-I	-	-	$765	$594	$542	$615	$575	-	-
J-K	-	-	-	$670	$686	$915	$1,012	-	-
L-M	-	-	-	$411	$645	$704	-	-	-
N+	-	$1,011	$659	$594	$591	$577	$568	$762	$291

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	4,498	HK$6,903 HKD	100%
D-E	IF	6,586	HK$6,961 HKD	108%
D-E	SI1	1,423	HK$3,564 HKD	83%
D-E	SI2	137	HK$3,643 HKD	95%
D-E	VS1	71,737	HK$3,693 HKD	80%
D-E	VS2	16,632	HK$3,758 HKD	71%
D-E	VVS1	38,786	HK$4,208 HKD	97%
D-E	VVS2	91,849	HK$3,936 HKD	84%
F-G	FL	73	HK$7,528 HKD	95%
F-G	IF	371	HK$6,969 HKD	96%
F-G	SI1	663	HK$3,707 HKD	68%
F-G	SI2	25	HK$4,455 HKD	80%
F-G	VS1	14,645	HK$3,661 HKD	74%
F-G	VS2	5,073	HK$3,759 HKD	72%
F-G	VVS1	1,933	HK$4,304 HKD	82%
F-G	VVS2	11,983	HK$3,784 HKD	76%
H-I	SI1	46	HK$4,508 HKD	91%
H-I	VS1	816	HK$4,255 HKD	60%
H-I	VS2	395	HK$4,825 HKD	53%
H-I	VVS1	157	HK$5,998 HKD	56%
H-I	VVS2	440	HK$4,661 HKD	50%
J-K	SI1	15	HK$7,937 HKD	63%
J-K	VS1	39	HK$5,384 HKD	50%
J-K	VS2	12	HK$7,181 HKD	75%
J-K	VVS2	40	HK$5,256 HKD	86%
L-M	VS1	33	HK$5,059 HKD	43%
L-M	VS2	16	HK$5,522 HKD	32%
L-M	VVS2	21	HK$3,223 HKD	67%
N+	I	46	HK$2,286 HKD	83%
N+	IF	222	HK$7,930 HKD	118%
N+	SI1	998	HK$4,455 HKD	178%
N+	SI2	201	HK$5,977 HKD	218%
N+	VS1	12,384	HK$4,634 HKD	111%
N+	VS2	4,391	HK$4,530 HKD	112%
N+	VVS1	1,593	HK$5,167 HKD	110%
N+	VVS2	9,760	HK$4,660 HKD	110%
N+	other	1,559	HK$12,514 HKD	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