How much does a 5.00ct+ lab grown oval diamond cost?

As of November 2026, 5.00ct+ lab grown oval diamonds range from $210 NZD/ct to $11,573 NZD/ct, with an average of $1,270 NZD/ct.

What is the price range for 5.00ct+ lab grown oval diamonds?

As of November 2026, the lowest listed price is $210 NZD per carat and the highest is $11,573 NZD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

How many 5.00ct+ lab grown oval diamonds are available?

There are 517,681 active lab grown oval listings between 5.00ct+ across 100+ retailers in the Carat Hunter index, refreshed daily.

How much can I save by comparing retailers for a 5.00ct+ lab grown oval diamond?

Approximately 51% of these diamonds are available at multiple retailers, with an average price spread of 87% between the cheapest and most expensive listing of the same stone.

Lab Grown Oval Diamonds, 5.00ct+

Quick answer

As of November 2026, there are 517,681 listings of lab grown oval diamonds between 5.00ct+ from at least 62 retailers. A typical stone in this range costs about $7,621 NZD in total, or $1,270 NZD per carat, and most listings sit between $210 NZD and $11,573 NZD per carat. About 51% of these stones are listed by more than one retailer, and the same stone is priced 87% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is F to G VVS2 at $604 NZD per carat across 116,169 listings. The same shape in natural form runs about $34,196 NZD per carat, roughly 26.9 times more.

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

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Oval lab grown stones in the index: 479 USD per carat, +3.3% 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: November 2026

Browse 517,681 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$3,068	$2,832	$959	$398	$411	$443	$335	-	$133
F-G	-	$1,859	$544	$340	$355	$412	$299	$300	-
H-I	-	$1,585	$1,379	$382	$365	$480	$300	-	-
J-K	-	-	-	-	$889	-	-	-	-
L-M	-	-	-	$507	-	-	-	-	-
N+	-	$2,328	$509	$423	$421	$379	$302	$262	-

Price by Colour & Clarity

Average price per carat for 5.00ct+ lab grown oval diamonds by colour and clarity grade.

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	3,379	$5,452 NZD	81%
D-E	I	12	$236 NZD	58%
D-E	IF	2,939	$5,033 NZD	94%
D-E	SI1	1,076	$596 NZD	128%
D-E	VS1	80,023	$730 NZD	100%
D-E	VS2	14,944	$787 NZD	104%
D-E	VVS1	8,929	$1,704 NZD	68%
D-E	VVS2	139,753	$708 NZD	96%
F-G	IF	803	$3,303 NZD	62%
F-G	SI1	2,014	$531 NZD	118%
F-G	SI2	124	$534 NZD	103%
F-G	VS1	72,566	$630 NZD	102%
F-G	VS2	15,731	$731 NZD	97%
F-G	VVS1	3,854	$967 NZD	86%
F-G	VVS2	116,169	$604 NZD	99%
H-I	IF	84	$2,818 NZD	51%
H-I	SI1	105	$533 NZD	81%
H-I	VS1	4,585	$648 NZD	93%
H-I	VS2	1,558	$853 NZD	80%
H-I	VVS1	211	$2,452 NZD	62%
H-I	VVS2	2,173	$680 NZD	121%
J-K	VS1	39	$1,580 NZD	51%
L-M	VVS2	11	$901 NZD	36%
N+	IF	61	$4,138 NZD	58%
N+	SI1	1,333	$537 NZD	86%
N+	SI2	152	$465 NZD	107%
N+	VS1	23,232	$748 NZD	98%
N+	VS2	10,407	$674 NZD	85%
N+	VVS1	187	$905 NZD	97%
N+	VVS2	9,468	$751 NZD	106%
N+	other	1,759	$3,475 NZD	15%

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