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 €144 EUR/ct to €9,050 EUR/ct, with an average of €734 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 €144 EUR per carat and the highest is €9,050 EUR per carat. The spread reflects differences in color, clarity, cut and retailer pricing.

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

There are 449,841 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 449,841 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 €2,789 EUR in total, or €734 EUR per carat, and most listings sit between €144 EUR and €9,050 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 €464 EUR per carat across 8,992 listings. The same shape in natural form runs about €10,883 EUR per carat, roughly 14.8 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 449,841 diamonds in Explorer

Price Distribution

LowHigh

Color	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2
D-E	$2,116	$1,608	$979	$654	$573	$538	$397	$410
F-G	$1,823	$1,258	$776	$545	$521	$518	$410	$350
H-I	-	-	$1,422	$578	$556	$639	$473	$674
J-K	-	-	-	$464	$578	$695	$1,915	-
L-M	-	-	-	$592	$599	$531	-	-
N+	-	$2,289	$754	$585	$577	$522	$433	$420

Price by Color & Clarity

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

Color	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	20,224	€1,894 EUR	96%
D-E	IF	23,969	€1,439 EUR	81%
D-E	SI1	1,116	€356 EUR	114%
D-E	SI2	76	€367 EUR	224%
D-E	VS1	80,960	€513 EUR	97%
D-E	VS2	15,921	€482 EUR	93%
D-E	VVS1	47,718	€876 EUR	88%
D-E	VVS2	97,746	€586 EUR	96%
F-G	FL	135	€1,632 EUR	98%
F-G	IF	538	€1,126 EUR	81%
F-G	SI1	1,344	€367 EUR	103%
F-G	SI2	85	€313 EUR	119%
F-G	VS1	42,894	€467 EUR	92%
F-G	VS2	8,992	€464 EUR	92%
F-G	VVS1	4,983	€695 EUR	95%
F-G	VVS2	42,354	€488 EUR	97%
H-I	SI1	318	€423 EUR	149%
H-I	SI2	44	€603 EUR	124%
H-I	VS1	5,040	€498 EUR	97%
H-I	VS2	1,383	€572 EUR	93%
H-I	VVS1	223	€1,273 EUR	51%
H-I	VVS2	2,559	€517 EUR	104%
J-K	SI1	25	€1,714 EUR	169%
J-K	VS1	251	€517 EUR	82%
J-K	VS2	71	€622 EUR	105%
J-K	VVS2	186	€415 EUR	105%
L-M	VS1	317	€536 EUR	34%
L-M	VS2	13	€475 EUR	27%
L-M	VVS2	109	€530 EUR	31%
N+	IF	66	€2,049 EUR	49%
N+	SI1	1,257	€387 EUR	108%
N+	SI2	179	€376 EUR	100%
N+	VS1	24,932	€517 EUR	96%
N+	VS2	8,642	€467 EUR	101%
N+	VVS1	718	€675 EUR	91%
N+	VVS2	13,029	€524 EUR	93%
N+	other	1,424	€2,047 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