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

As of September 2026, 3.00 to 4.99ct lab grown cushion diamonds range from €144 EUR/ct to €12,418 EUR/ct, with an average of €1,044 EUR/ct.

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

As of September 2026, the lowest listed price is €144 EUR per carat and the highest is €12,418 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 346,942 active lab grown cushion listings between 3.00 to 4.99ct across 100+ retailers in the Carat Hunter index, refreshed daily.

Lab Grown Cushion Diamonds, 3.00 to 4.99ct

Quick answer

As of September 2026, there are 346,942 lab grown cushion diamonds between 3.00 to 4.99ct listed by at least 54 retailers. A typical stone in this range costs about €3,967 EUR in total, or €1,044 EUR per carat, and most listings sit between €144 EUR and €12,418 EUR per carat. The best value grade combination with real depth of stock is F to G VS1 at €367 EUR per carat across 34,267 listings. The same shape in natural form runs about €11,642 EUR per carat, roughly 11.2 times more.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Cushion lab grown stones in the index: 466 USD per carat, -14.7% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Browse 346,942 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$3,125	$1,853	$900	$539	$461	$435	$377	$712	-
F-G	$2,082	$1,261	$709	$428	$400	$447	$378	$593	-
H-I	-	-	$1,458	$440	$481	$741	$625	$846	-
J-K	-	-	-	$408	$576	$1,297	$1,955	$5,425	$6,164
L-M	-	-	-	$534	$541	-	-	-	-
N+	-	$2,308	$673	$551	$519	$472	$385	$416	-

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	15,792	€2,867 EUR	107%
D-E	IF	15,252	€1,700 EUR	117%
D-E	SI1	878	€346 EUR	172%
D-E	SI2	79	€653 EUR	113%
D-E	VS1	65,125	€423 EUR	107%
D-E	VS2	11,933	€399 EUR	131%
D-E	VVS1	35,752	€826 EUR	133%
D-E	VVS2	86,870	€494 EUR	111%
F-G	FL	113	€1,910 EUR	100%
F-G	IF	375	€1,157 EUR	108%
F-G	SI1	979	€346 EUR	152%
F-G	SI2	78	€544 EUR	171%
F-G	VS1	34,267	€367 EUR	114%
F-G	VS2	7,076	€410 EUR	148%
F-G	VVS1	3,915	€650 EUR	134%
F-G	VVS2	34,838	€393 EUR	120%
H-I	SI1	263	€573 EUR	190%
H-I	SI2	38	€776 EUR	111%
H-I	VS1	3,789	€441 EUR	143%
H-I	VS2	1,231	€680 EUR	101%
H-I	VVS1	191	€1,338 EUR	30%
H-I	VVS2	2,019	€404 EUR	155%
J-K	I	24	€5,655 EUR	4%
J-K	SI1	87	€1,794 EUR	7%
J-K	SI2	20	€4,977 EUR	80%
J-K	VS1	215	€529 EUR	85%
J-K	VS2	97	€1,190 EUR	101%
J-K	VVS2	124	€374 EUR	104%
L-M	VS1	69	€497 EUR	20%
L-M	VVS2	35	€490 EUR	23%
N+	IF	47	€2,118 EUR	18%
N+	SI1	683	€354 EUR	94%
N+	SI2	118	€382 EUR	72%
N+	VS1	11,995	€476 EUR	93%
N+	VS2	4,149	€433 EUR	90%
N+	VVS1	348	€618 EUR	99%
N+	VVS2	6,337	€506 EUR	94%
N+	other	1,741	€2,085 EUR	12%

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