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

As of October 2026, 1.00 to 1.49ct lab grown heart diamonds range from €140 EUR/ct to €2,666 EUR/ct, with an average of €544 EUR/ct.

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

As of October 2026, the lowest listed price is €140 EUR per carat and the highest is €2,666 EUR per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

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

There are 239,644 active lab grown heart 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 heart diamond?

Approximately 53% of these diamonds are available at multiple retailers, with an average price spread of 106% between the cheapest and most expensive listing of the same stone.

Lab Grown Heart Diamonds, 1.00 to 1.49ct

Quick answer

As of October 2026, there are 239,644 listings of lab grown heart diamonds between 1.00 to 1.49ct from at least 53 retailers. A typical stone in this range costs about €653 EUR in total, or €544 EUR per carat, and most listings sit between €140 EUR and €2,666 EUR per carat. About 53% of these stones are listed by more than one retailer, and the same stone is priced 106% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is D to E VS2 at €354 EUR per carat across 9,056 listings. The same shape in natural form runs about €2,840 EUR per carat, roughly 5.2 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. Heart lab grown stones in the index: 421 USD per carat, -1.8% 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: October 2026

Browse 239,644 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$626	$621	$446	$416	$404	$393	$358	$341	-
F-G	$594	$609	$410	$408	$412	$401	$478	$1,555	-
H-I	-	-	$359	$412	$505	$1,242	$860	$1,653	$1,309
J-K	-	-	-	$540	$504	$442	$903	-	-
L-M	-	-	-	-	$411	-	-	-	-
N+	-	$1,269	$527	$453	$443	$423	$339	$239	$335

Price by Colour & Clarity

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

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	3,615	€562 EUR	125%
D-E	IF	8,219	€558 EUR	110%
D-E	SI1	866	€321 EUR	117%
D-E	SI2	117	€306 EUR	102%
D-E	VS1	51,294	€363 EUR	98%
D-E	VS2	9,056	€354 EUR	103%
D-E	VVS1	33,688	€401 EUR	110%
D-E	VVS2	79,915	€374 EUR	109%
F-G	FL	34	€534 EUR	130%
F-G	IF	156	€547 EUR	98%
F-G	SI1	159	€430 EUR	96%
F-G	SI2	10	€1,397 EUR	33%
F-G	VS1	7,030	€370 EUR	85%
F-G	VS2	1,312	€361 EUR	95%
F-G	VVS1	2,094	€368 EUR	116%
F-G	VVS2	10,010	€367 EUR	99%
H-I	I	11	€1,176 EUR	65%
H-I	SI1	118	€772 EUR	95%
H-I	SI2	65	€1,485 EUR	51%
H-I	VS1	198	€454 EUR	83%
H-I	VS2	69	€1,116 EUR	87%
H-I	VVS1	42	€323 EUR	130%
H-I	VVS2	306	€370 EUR	101%
J-K	SI1	43	€811 EUR	63%
J-K	VS1	18	€453 EUR	133%
J-K	VS2	20	€397 EUR	99%
J-K	VVS2	90	€485 EUR	79%
L-M	VS1	31	€369 EUR	65%
N+	I	130	€301 EUR	138%
N+	IF	86	€1,140 EUR	98%
N+	SI1	1,326	€305 EUR	143%
N+	SI2	477	€214 EUR	196%
N+	VS1	13,253	€398 EUR	137%
N+	VS2	5,045	€380 EUR	140%
N+	VVS1	845	€474 EUR	144%
N+	VVS2	9,053	€407 EUR	133%
N+	other	843	€1,379 EUR	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