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 $209 SGD/ct to $18,048 SGD/ct, with an average of $1,517 SGD/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 $209 SGD per carat and the highest is $18,048 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 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 $5,766 SGD in total, or $1,517 SGD per carat, and most listings sit between $209 SGD and $18,048 SGD per carat. The best value grade combination with real depth of stock is F to G VS1 at $533 SGD per carat across 34,267 listings. The same shape in natural form runs about $16,920 SGD 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	$4,167 SGD	107%
D-E	IF	15,252	$2,471 SGD	117%
D-E	SI1	878	$503 SGD	172%
D-E	SI2	79	$949 SGD	113%
D-E	VS1	65,125	$615 SGD	107%
D-E	VS2	11,933	$581 SGD	131%
D-E	VVS1	35,752	$1,200 SGD	133%
D-E	VVS2	86,870	$719 SGD	111%
F-G	FL	113	$2,775 SGD	100%
F-G	IF	375	$1,681 SGD	108%
F-G	SI1	979	$503 SGD	152%
F-G	SI2	78	$791 SGD	171%
F-G	VS1	34,267	$533 SGD	114%
F-G	VS2	7,076	$595 SGD	148%
F-G	VVS1	3,915	$945 SGD	134%
F-G	VVS2	34,838	$571 SGD	120%
H-I	SI1	263	$833 SGD	190%
H-I	SI2	38	$1,127 SGD	111%
H-I	VS1	3,789	$641 SGD	143%
H-I	VS2	1,231	$988 SGD	101%
H-I	VVS1	191	$1,944 SGD	30%
H-I	VVS2	2,019	$586 SGD	155%
J-K	I	24	$8,219 SGD	4%
J-K	SI1	87	$2,607 SGD	7%
J-K	SI2	20	$7,234 SGD	80%
J-K	VS1	215	$768 SGD	85%
J-K	VS2	97	$1,729 SGD	101%
J-K	VVS2	124	$544 SGD	104%
L-M	VS1	69	$722 SGD	20%
L-M	VVS2	35	$712 SGD	23%
N+	IF	47	$3,078 SGD	18%
N+	SI1	683	$514 SGD	94%
N+	SI2	118	$555 SGD	72%
N+	VS1	11,995	$693 SGD	93%
N+	VS2	4,149	$630 SGD	90%
N+	VVS1	348	$898 SGD	99%
N+	VVS2	6,337	$735 SGD	94%
N+	other	1,741	$3,030 SGD	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