How much does a 3.00 to 4.99ct lab grown cushion diamond cost?

As of October 2026, 3.00 to 4.99ct lab grown cushion diamonds range from $157 SGD/ct to $7,104 SGD/ct, with an average of $1,060 SGD/ct.

What is the price range for 3.00 to 4.99ct lab grown cushion diamonds?

As of October 2026, the lowest listed price is $157 SGD per carat and the highest is $7,104 SGD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

How many 3.00 to 4.99ct lab grown cushion diamonds are available?

There are 449,258 active lab grown cushion listings between 3.00 to 4.99ct across 100+ retailers in the Carat Hunter index, refreshed daily.

How much can I save by comparing retailers for a 3.00 to 4.99ct lab grown cushion diamond?

Approximately 42% of these diamonds are available at multiple retailers, with an average price spread of 95% between the cheapest and most expensive listing of the same stone.

Lab Grown Cushion Diamonds, 3.00 to 4.99ct

Quick answer

As of October 2026, there are 449,258 listings of lab grown cushion diamonds between 3.00 to 4.99ct from at least 63 retailers. A typical stone in this range costs about $4,028 SGD in total, or $1,060 SGD per carat, and most listings sit between $157 SGD and $7,104 SGD per carat. About 42% of these stones are listed by more than one retailer, and the same stone is priced 95% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is F to G VS2 at $661 SGD per carat across 9,035 listings. The same shape in natural form runs about $15,607 SGD per carat, roughly 14.7 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 449,258 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2
D-E	$2,135	$1,629	$983	$658	$573	$535	$397	$402
F-G	$1,858	$1,273	$780	$542	$522	$515	$412	$350
H-I	-	-	$1,411	$578	$557	$660	$515	$753
J-K	-	-	-	$471	$577	$735	$1,841	-
L-M	-	-	-	$631	$613	$524	-	-
N+	-	$2,289	$759	$589	$581	$525	$432	$410

Price by Colour & Clarity

Average price per carat for 3.00 to 4.99ct lab grown cushion diamonds by colour and clarity grade.

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	19,861	$2,737 SGD	107%
D-E	IF	23,956	$2,088 SGD	88%
D-E	SI1	1,115	$509 SGD	114%
D-E	SI2	79	$515 SGD	227%
D-E	VS1	80,691	$734 SGD	97%
D-E	VS2	16,048	$686 SGD	93%
D-E	VVS1	47,628	$1,260 SGD	87%
D-E	VVS2	97,794	$843 SGD	95%
F-G	FL	126	$2,382 SGD	93%
F-G	IF	532	$1,632 SGD	79%
F-G	SI1	1,325	$528 SGD	104%
F-G	SI2	85	$449 SGD	119%
F-G	VS1	43,596	$669 SGD	92%
F-G	VS2	9,035	$661 SGD	92%
F-G	VVS1	4,951	$1,000 SGD	94%
F-G	VVS2	42,974	$695 SGD	98%
H-I	SI1	310	$661 SGD	160%
H-I	SI2	44	$965 SGD	111%
H-I	VS1	5,050	$714 SGD	99%
H-I	VS2	1,410	$846 SGD	94%
H-I	VVS1	224	$1,809 SGD	52%
H-I	VVS2	2,619	$741 SGD	105%
J-K	SI1	19	$2,360 SGD	98%
J-K	VS1	253	$740 SGD	85%
J-K	VS2	68	$943 SGD	123%
J-K	VVS2	191	$604 SGD	103%
L-M	VS1	300	$786 SGD	33%
L-M	VS2	12	$672 SGD	31%
L-M	VVS2	106	$809 SGD	29%
N+	IF	66	$2,934 SGD	49%
N+	SI1	1,253	$554 SGD	108%
N+	SI2	185	$526 SGD	105%
N+	VS1	24,073	$745 SGD	96%
N+	VS2	8,472	$673 SGD	101%
N+	VVS1	698	$973 SGD	89%
N+	VVS2	12,626	$755 SGD	93%
N+	other	1,483	$2,933 SGD	13%

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