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 €110 EUR/ct to €4,978 EUR/ct, with an average of €743 EUR/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 €110 EUR per carat and the highest is €4,978 EUR 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 €2,822 EUR in total, or €743 EUR per carat, and most listings sit between €110 EUR and €4,978 EUR 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 €463 EUR per carat across 9,035 listings. The same shape in natural form runs about €10,937 EUR 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	€1,918 EUR	107%
D-E	IF	23,956	€1,464 EUR	88%
D-E	SI1	1,115	€357 EUR	114%
D-E	SI2	79	€361 EUR	227%
D-E	VS1	80,691	€514 EUR	97%
D-E	VS2	16,048	€481 EUR	93%
D-E	VVS1	47,628	€883 EUR	87%
D-E	VVS2	97,794	€591 EUR	95%
F-G	FL	126	€1,669 EUR	93%
F-G	IF	532	€1,143 EUR	79%
F-G	SI1	1,325	€370 EUR	104%
F-G	SI2	85	€314 EUR	119%
F-G	VS1	43,596	€469 EUR	92%
F-G	VS2	9,035	€463 EUR	92%
F-G	VVS1	4,951	€700 EUR	94%
F-G	VVS2	42,974	€487 EUR	98%
H-I	SI1	310	€463 EUR	160%
H-I	SI2	44	€676 EUR	111%
H-I	VS1	5,050	€500 EUR	99%
H-I	VS2	1,410	€593 EUR	94%
H-I	VVS1	224	€1,267 EUR	52%
H-I	VVS2	2,619	€519 EUR	105%
J-K	SI1	19	€1,654 EUR	98%
J-K	VS1	253	€519 EUR	85%
J-K	VS2	68	€661 EUR	123%
J-K	VVS2	191	€423 EUR	103%
L-M	VS1	300	€551 EUR	33%
L-M	VS2	12	€471 EUR	31%
L-M	VVS2	106	€567 EUR	29%
N+	IF	66	€2,056 EUR	49%
N+	SI1	1,253	€388 EUR	108%
N+	SI2	185	€369 EUR	105%
N+	VS1	24,073	€522 EUR	96%
N+	VS2	8,472	€472 EUR	101%
N+	VVS1	698	€682 EUR	89%
N+	VVS2	12,626	€529 EUR	93%
N+	other	1,483	€2,055 EUR	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