How much does a 1.00 to 1.49ct lab grown princess diamond cost?

As of November 2026, 1.00 to 1.49ct lab grown princess diamonds range from £113 GBP/ct to £4,016 GBP/ct, with an average of £482 GBP/ct.

What is the price range for 1.00 to 1.49ct lab grown princess diamonds?

As of November 2026, the lowest listed price is £113 GBP per carat and the highest is £4,016 GBP per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

How many 1.00 to 1.49ct lab grown princess diamonds are available?

There are 266,127 active lab grown princess listings between 1.00 to 1.49ct across 100+ retailers in the Carat Hunter index, refreshed daily.

How much can I save by comparing retailers for a 1.00 to 1.49ct lab grown princess diamond?

Approximately 39% of these diamonds are available at multiple retailers, with an average price spread of 93% between the cheapest and most expensive listing of the same stone.

Lab Grown Princess Diamonds, 1.00 to 1.49ct

Quick answer

As of November 2026, there are 266,127 listings of lab grown princess diamonds between 1.00 to 1.49ct from at least 56 retailers. A typical stone in this range costs about £578 GBP in total, or £482 GBP per carat, and most listings sit between £113 GBP and £4,016 GBP per carat. About 39% of these stones are listed by more than one retailer, and the same stone is priced 93% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is F to G VS2 at £339 GBP per carat across 3,216 listings. The same shape in natural form runs about £2,129 GBP per carat, roughly 4.4 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: November 2026

Browse 266,127 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$926	$850	$486	$492	$489	$467	$362	$288	-
F-G	$763	$671	$565	$493	$462	$455	$416	$399	-
H-I	-	-	$746	$489	$488	$550	$719	$1,025	$223
J-K	-	-	-	$893	-	-	$802	-	-
L-M	-	-	-	$476	-	-	-	-	-
N+	$780	$1,685	$538	$457	$467	$432	$387	$1,294	$205

Price by Colour & Clarity

Average price per carat for 1.00 to 1.49ct lab grown princess diamonds by colour and clarity grade.

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	3,004	£691 GBP	106%
D-E	IF	11,260	£635 GBP	117%
D-E	SI1	1,088	£271 GBP	96%
D-E	SI2	57	£215 GBP	117%
D-E	VS1	61,323	£365 GBP	84%
D-E	VS2	11,344	£349 GBP	82%
D-E	VVS1	45,081	£363 GBP	113%
D-E	VVS2	86,861	£367 GBP	94%
F-G	FL	65	£570 GBP	107%
F-G	IF	516	£501 GBP	107%
F-G	SI1	463	£310 GBP	84%
F-G	SI2	22	£298 GBP	115%
F-G	VS1	11,670	£345 GBP	75%
F-G	VS2	3,216	£339 GBP	82%
F-G	VVS1	3,127	£421 GBP	79%
F-G	VVS2	13,025	£368 GBP	80%
H-I	I	10	£166 GBP	117%
H-I	SI1	42	£537 GBP	159%
H-I	SI2	29	£765 GBP	59%
H-I	VS1	835	£364 GBP	65%
H-I	VS2	257	£411 GBP	57%
H-I	VVS1	121	£557 GBP	40%
H-I	VVS2	677	£365 GBP	68%
J-K	SI1	10	£598 GBP	58%
J-K	VVS2	10	£666 GBP	72%
L-M	VVS2	13	£356 GBP	66%
N+	FL	12	£582 GBP	85%
N+	I	28	£153 GBP	95%
N+	IF	166	£1,257 GBP	25%
N+	SI1	901	£288 GBP	142%
N+	SI2	166	£966 GBP	117%
N+	VS1	4,556	£348 GBP	135%
N+	VS2	2,550	£322 GBP	131%
N+	VVS1	288	£402 GBP	131%
N+	VVS2	2,895	£341 GBP	134%
N+	other	439	£1,081 GBP	27%

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