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

As of September 2026, 5.00ct+ lab grown oval diamonds range from £133 GBP/ct to £30,844 GBP/ct, with an average of £1,945 GBP/ct.

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

As of September 2026, the lowest listed price is £133 GBP per carat and the highest is £30,844 GBP 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 £11,673 GBP in total, or £1,945 GBP per carat, and most listings sit between £133 GBP and £30,844 GBP per carat. The best value grade combination with real depth of stock is F to G VVS2 at £288 GBP per carat across 59,827 listings. The same shape in natural form runs about £17,367 GBP 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	£3,654 GBP	93%
D-E	IF	1,687	£2,865 GBP	83%
D-E	SI1	471	£258 GBP	145%
D-E	VS1	31,463	£404 GBP	110%
D-E	VS2	6,096	£401 GBP	127%
D-E	VVS1	5,815	£1,047 GBP	112%
D-E	VVS2	61,826	£360 GBP	106%
F-G	IF	466	£1,733 GBP	81%
F-G	SI1	756	£228 GBP	150%
F-G	SI2	42	£6,335 GBP	142%
F-G	VS1	31,865	£313 GBP	118%
F-G	VS2	7,562	£345 GBP	117%
F-G	VVS1	2,340	£513 GBP	120%
F-G	VVS2	59,827	£288 GBP	113%
H-I	IF	48	£1,404 GBP	64%
H-I	SI1	54	£362 GBP	204%
H-I	SI2	15	£11,381 GBP	73%
H-I	VS1	2,794	£331 GBP	142%
H-I	VS2	2,292	£899 GBP	108%
H-I	VVS1	120	£712 GBP	99%
H-I	VVS2	1,204	£340 GBP	138%
J-K	I	10	£15,225 GBP	52%
J-K	SI1	12	£13,376 GBP	75%
J-K	SI2	10	£7,793 GBP	N/A
J-K	VS1	38	£832 GBP	128%
J-K	VS2	31	£613 GBP	79%
J-K	VVS2	25	£8,930 GBP	1005%
N+	IF	23	£1,848 GBP	69%
N+	SI1	344	£271 GBP	97%
N+	SI2	35	£256 GBP	101%
N+	VS1	5,808	£409 GBP	110%
N+	VS2	2,702	£384 GBP	99%
N+	VVS1	51	£628 GBP	221%
N+	VVS2	2,552	£466 GBP	100%
N+	other	1,213	£1,653 GBP	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