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

As of October 2026, 3.00 to 4.99ct lab grown princess diamonds range from $141 NZD/ct to $12,722 NZD/ct, with an average of $1,694 NZD/ct.

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

As of October 2026, the lowest listed price is $141 NZD per carat and the highest is $12,722 NZD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

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

There are 257,356 active lab grown princess 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 princess diamond?

Approximately 45% of these diamonds are available at multiple retailers, with an average price spread of 117% between the cheapest and most expensive listing of the same stone.

Lab Grown Princess Diamonds, 3.00 to 4.99ct

Quick answer

As of October 2026, there are 257,356 listings of lab grown princess diamonds between 3.00 to 4.99ct from at least 56 retailers. A typical stone in this range costs about $6,436 NZD in total, or $1,694 NZD per carat, and most listings sit between $141 NZD and $12,722 NZD per carat. About 45% of these stones are listed by more than one retailer, and the same stone is priced 117% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is D to E VS2 at $706 NZD per carat across 10,380 listings. The same shape in natural form runs about $19,337 NZD per carat, roughly 11.4 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. Princess lab grown stones in the index: 461 USD per carat, -4.8% 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 257,356 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$2,349	$2,272	$856	$488	$432	$396	$354	$339	-
F-G	$3,129	-	$708	$443	$420	$431	$363	$277	-
H-I	-	$2,473	$1,252	$433	$467	$702	$456	$683	$134
J-K	-	-	-	$367	$457	$1,610	$1,728	$3,141	-
L-M	-	-	-	-	-	$2,410	-	-	-
N+	-	-	$577	$464	$503	$589	$1,545	$601	-

Price by Colour & Clarity

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

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	8,138	$4,185 NZD	80%
D-E	IF	6,641	$4,047 NZD	90%
D-E	SI1	525	$630 NZD	100%
D-E	SI2	32	$604 NZD	116%
D-E	VS1	64,486	$769 NZD	106%
D-E	VS2	10,380	$706 NZD	118%
D-E	VVS1	15,451	$1,524 NZD	100%
D-E	VVS2	62,912	$869 NZD	113%
F-G	FL	33	$5,574 NZD	52%
F-G	SI1	879	$648 NZD	114%
F-G	SI2	64	$494 NZD	131%
F-G	VS1	29,165	$748 NZD	103%
F-G	VS2	6,857	$768 NZD	104%
F-G	VVS1	2,782	$1,261 NZD	113%
F-G	VVS2	30,003	$789 NZD	105%
H-I	I	10	$239 NZD	103%
H-I	IF	15	$4,406 NZD	19%
H-I	SI1	288	$812 NZD	216%
H-I	SI2	25	$1,218 NZD	289%
H-I	VS1	4,890	$833 NZD	144%
H-I	VS2	1,518	$1,251 NZD	223%
H-I	VVS1	258	$2,231 NZD	104%
H-I	VVS2	1,853	$771 NZD	109%
J-K	SI1	72	$3,079 NZD	29%
J-K	SI2	53	$5,596 NZD	17%
J-K	VS1	127	$814 NZD	216%
J-K	VS2	63	$2,869 NZD	83%
J-K	VVS2	91	$653 NZD	109%
L-M	VS2	31	$4,293 NZD	28%
N+	SI1	741	$2,752 NZD	115%
N+	SI2	224	$1,071 NZD	420%
N+	VS1	4,497	$897 NZD	127%
N+	VS2	2,233	$1,050 NZD	112%
N+	VVS1	57	$1,028 NZD	105%
N+	VVS2	1,634	$826 NZD	114%
N+	other	328	$3,547 NZD	28%

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