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 $174 AUD/ct to $7,879 AUD/ct, with an average of $1,175 AUD/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 $174 AUD per carat and the highest is $7,879 AUD 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 $4,467 AUD in total, or $1,175 AUD per carat, and most listings sit between $174 AUD and $7,879 AUD 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 $733 AUD per carat across 9,035 listings. The same shape in natural form runs about $17,309 AUD 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	$3,036 AUD	107%
D-E	IF	23,956	$2,316 AUD	88%
D-E	SI1	1,115	$565 AUD	114%
D-E	SI2	79	$572 AUD	227%
D-E	VS1	80,691	$814 AUD	97%
D-E	VS2	16,048	$761 AUD	93%
D-E	VVS1	47,628	$1,398 AUD	87%
D-E	VVS2	97,794	$935 AUD	95%
F-G	FL	126	$2,641 AUD	93%
F-G	IF	532	$1,810 AUD	79%
F-G	SI1	1,325	$586 AUD	104%
F-G	SI2	85	$497 AUD	119%
F-G	VS1	43,596	$742 AUD	92%
F-G	VS2	9,035	$733 AUD	92%
F-G	VVS1	4,951	$1,109 AUD	94%
F-G	VVS2	42,974	$771 AUD	98%
H-I	SI1	310	$733 AUD	160%
H-I	SI2	44	$1,070 AUD	111%
H-I	VS1	5,050	$792 AUD	99%
H-I	VS2	1,410	$939 AUD	94%
H-I	VVS1	224	$2,006 AUD	52%
H-I	VVS2	2,619	$822 AUD	105%
J-K	SI1	19	$2,618 AUD	98%
J-K	VS1	253	$821 AUD	85%
J-K	VS2	68	$1,046 AUD	123%
J-K	VVS2	191	$669 AUD	103%
L-M	VS1	300	$872 AUD	33%
L-M	VS2	12	$745 AUD	31%
L-M	VVS2	106	$897 AUD	29%
N+	IF	66	$3,254 AUD	49%
N+	SI1	1,253	$614 AUD	108%
N+	SI2	185	$584 AUD	105%
N+	VS1	24,073	$826 AUD	96%
N+	VS2	8,472	$747 AUD	101%
N+	VVS1	698	$1,079 AUD	89%
N+	VVS2	12,626	$838 AUD	93%
N+	other	1,483	$3,253 AUD	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