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

As of September 2026, 5.00ct+ lab grown oval diamonds range from $250 AUD/ct to $58,088 AUD/ct, with an average of $3,664 AUD/ct.

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

As of September 2026, the lowest listed price is $250 AUD per carat and the highest is $58,088 AUD 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 231,939 active lab grown oval listings between 5.00ct+ across 100+ retailers in the Carat Hunter index, refreshed daily.

Lab Grown Oval Diamonds, 5.00ct+

Quick answer

As of September 2026, there are 231,939 lab grown oval diamonds between 5.00ct+ listed by at least 51 retailers. A typical stone in this range costs about $21,983 AUD in total, or $3,664 AUD per carat, and most listings sit between $250 AUD and $58,088 AUD per carat. The best value grade combination with real depth of stock is F to G VVS2 at $542 AUD per carat across 59,827 listings. The same shape in natural form runs about $32,708 AUD per carat, roughly 8.9 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. Oval lab grown stones in the index: 487 USD per carat, -11.2% 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 231,939 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$4,936	$3,871	$1,414	$487	$546	$541	$348	-	-
F-G	-	$2,341	$694	$389	$423	$465	$308	$8,557	-
H-I	-	$1,896	$961	$459	$448	$1,214	$488	$15K	-
J-K	-	-	-	$12K	$1,124	$828	$18K	$11K	$21K
N+	-	$2,496	$848	$629	$553	$518	$367	$345	-

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	2,342	$6,881 AUD	93%
D-E	IF	1,687	$5,396 AUD	83%
D-E	SI1	471	$485 AUD	145%
D-E	VS1	31,463	$761 AUD	110%
D-E	VS2	6,096	$755 AUD	127%
D-E	VVS1	5,815	$1,972 AUD	112%
D-E	VVS2	61,826	$679 AUD	106%
F-G	IF	466	$3,264 AUD	81%
F-G	SI1	756	$429 AUD	150%
F-G	SI2	42	$11,930 AUD	142%
F-G	VS1	31,865	$589 AUD	118%
F-G	VS2	7,562	$649 AUD	117%
F-G	VVS1	2,340	$967 AUD	120%
F-G	VVS2	59,827	$542 AUD	113%
H-I	IF	48	$2,643 AUD	64%
H-I	SI1	54	$681 AUD	204%
H-I	SI2	15	$21,434 AUD	73%
H-I	VS1	2,794	$624 AUD	142%
H-I	VS2	2,292	$1,693 AUD	108%
H-I	VVS1	120	$1,340 AUD	99%
H-I	VVS2	1,204	$640 AUD	138%
J-K	I	10	$28,674 AUD	52%
J-K	SI1	12	$25,190 AUD	75%
J-K	SI2	10	$14,676 AUD	N/A
J-K	VS1	38	$1,567 AUD	128%
J-K	VS2	31	$1,155 AUD	79%
J-K	VVS2	25	$16,819 AUD	1005%
N+	IF	23	$3,480 AUD	69%
N+	SI1	344	$511 AUD	97%
N+	SI2	35	$481 AUD	101%
N+	VS1	5,808	$771 AUD	110%
N+	VS2	2,702	$722 AUD	99%
N+	VVS1	51	$1,182 AUD	221%
N+	VVS2	2,552	$877 AUD	100%
N+	other	1,213	$3,113 AUD	16%

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