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 $224 SGD/ct to $6,675 SGD/ct, with an average of $842 SGD/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 $224 SGD per carat and the highest is $6,675 SGD 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 $1,010 SGD in total, or $842 SGD per carat, and most listings sit between $224 SGD and $6,675 SGD 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 $598 SGD per carat across 14,645 listings. The same shape in natural form runs about $4,328 SGD 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	$1,128 SGD	100%
D-E	IF	6,586	$1,138 SGD	108%
D-E	SI1	1,423	$582 SGD	83%
D-E	SI2	137	$595 SGD	95%
D-E	VS1	71,737	$604 SGD	80%
D-E	VS2	16,632	$614 SGD	71%
D-E	VVS1	38,786	$688 SGD	97%
D-E	VVS2	91,849	$643 SGD	84%
F-G	FL	73	$1,230 SGD	95%
F-G	IF	371	$1,139 SGD	96%
F-G	SI1	663	$606 SGD	68%
F-G	SI2	25	$728 SGD	80%
F-G	VS1	14,645	$598 SGD	74%
F-G	VS2	5,073	$614 SGD	72%
F-G	VVS1	1,933	$703 SGD	82%
F-G	VVS2	11,983	$618 SGD	76%
H-I	SI1	46	$737 SGD	91%
H-I	VS1	816	$695 SGD	60%
H-I	VS2	395	$788 SGD	53%
H-I	VVS1	157	$980 SGD	56%
H-I	VVS2	440	$762 SGD	50%
J-K	SI1	15	$1,297 SGD	63%
J-K	VS1	39	$880 SGD	50%
J-K	VS2	12	$1,174 SGD	75%
J-K	VVS2	40	$859 SGD	86%
L-M	VS1	33	$827 SGD	43%
L-M	VS2	16	$902 SGD	32%
L-M	VVS2	21	$527 SGD	67%
N+	I	46	$374 SGD	83%
N+	IF	222	$1,296 SGD	118%
N+	SI1	998	$728 SGD	178%
N+	SI2	201	$977 SGD	218%
N+	VS1	12,384	$757 SGD	111%
N+	VS2	4,391	$740 SGD	112%
N+	VVS1	1,593	$844 SGD	110%
N+	VVS2	9,760	$762 SGD	110%
N+	other	1,559	$2,045 SGD	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