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

As of September 2026, 3.00 to 4.99ct lab grown heart diamonds range from $255 NZD/ct to $17,822 NZD/ct, with an average of $1,615 NZD/ct.

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

As of September 2026, the lowest listed price is $255 NZD per carat and the highest is $17,822 NZD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

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

There are 56,200 active lab grown heart listings between 3.00 to 4.99ct across 100+ retailers in the Carat Hunter index, refreshed daily.

Lab Grown Heart Diamonds, 3.00 to 4.99ct

Quick answer

As of September 2026, there are 56,200 lab grown heart diamonds between 3.00 to 4.99ct listed by at least 48 retailers. A typical stone in this range costs about $6,137 NZD in total, or $1,615 NZD per carat, and most listings sit between $255 NZD and $17,822 NZD per carat. The best value grade combination with real depth of stock is F to G VVS2 at $734 NZD per carat across 4,531 listings. The same shape in natural form runs about $20,949 NZD per carat, roughly 13.0 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. Heart lab grown stones in the index: 440 USD per carat, -9.4% 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 56,200 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2
D-E	$2,020	$1,667	$983	$462	$466	$440	$351	$286
F-G	$3,307	$2,575	$695	$427	$465	$447	$382	$263
H-I	-	-	$858	$371	$381	$338	$914	$1,211
J-K	-	-	-	$309	$637	$730	$2,337	$6,856
N+	-	-	$742	$612	$567	$539	$407	$428

Price by Colour & Clarity

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

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	1,330	$3,470 NZD	132%
D-E	IF	2,144	$2,864 NZD	129%
D-E	SI1	161	$604 NZD	94%
D-E	SI2	28	$492 NZD	61%
D-E	VS1	12,786	$800 NZD	81%
D-E	VS2	1,953	$756 NZD	87%
D-E	VVS1	4,061	$1,688 NZD	107%
D-E	VVS2	14,489	$793 NZD	92%
F-G	FL	30	$5,681 NZD	82%
F-G	IF	38	$4,424 NZD	136%
F-G	SI1	267	$656 NZD	99%
F-G	SI2	43	$452 NZD	49%
F-G	VS1	4,742	$799 NZD	96%
F-G	VS2	1,375	$767 NZD	112%
F-G	VVS1	610	$1,193 NZD	100%
F-G	VVS2	4,531	$734 NZD	87%
H-I	SI1	50	$1,570 NZD	415%
H-I	SI2	10	$2,081 NZD	128%
H-I	VS1	439	$655 NZD	126%
H-I	VS2	113	$581 NZD	78%
H-I	VVS1	32	$1,474 NZD	96%
H-I	VVS2	241	$637 NZD	94%
J-K	SI1	11	$4,014 NZD	7%
J-K	SI2	11	$11,778 NZD	48%
J-K	VS1	34	$1,094 NZD	88%
J-K	VS2	10	$1,255 NZD	186%
J-K	VVS2	30	$530 NZD	146%
N+	SI1	181	$698 NZD	91%
N+	SI2	25	$735 NZD	122%
N+	VS1	3,162	$974 NZD	90%
N+	VS2	1,026	$926 NZD	90%
N+	VVS1	27	$1,275 NZD	75%
N+	VVS2	1,869	$1,052 NZD	86%
N+	other	341	$3,570 NZD	14%

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