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 $222 AUD/ct to $4,218 AUD/ct, with an average of $861 AUD/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 $222 AUD per carat and the highest is $4,218 AUD 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 $1,033 AUD in total, or $861 AUD per carat, and most listings sit between $222 AUD and $4,218 AUD 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 $560 AUD per carat across 9,056 listings. The same shape in natural form runs about $4,494 AUD 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	$889 AUD	125%
D-E	IF	8,219	$883 AUD	110%
D-E	SI1	866	$509 AUD	117%
D-E	SI2	117	$485 AUD	102%
D-E	VS1	51,294	$575 AUD	98%
D-E	VS2	9,056	$560 AUD	103%
D-E	VVS1	33,688	$635 AUD	110%
D-E	VVS2	79,915	$592 AUD	109%
F-G	FL	34	$845 AUD	130%
F-G	IF	156	$866 AUD	98%
F-G	SI1	159	$680 AUD	96%
F-G	SI2	10	$2,211 AUD	33%
F-G	VS1	7,030	$586 AUD	85%
F-G	VS2	1,312	$571 AUD	95%
F-G	VVS1	2,094	$583 AUD	116%
F-G	VVS2	10,010	$581 AUD	99%
H-I	I	11	$1,861 AUD	65%
H-I	SI1	118	$1,222 AUD	95%
H-I	SI2	65	$2,351 AUD	51%
H-I	VS1	198	$718 AUD	83%
H-I	VS2	69	$1,766 AUD	87%
H-I	VVS1	42	$511 AUD	130%
H-I	VVS2	306	$585 AUD	101%
J-K	SI1	43	$1,284 AUD	63%
J-K	VS1	18	$716 AUD	133%
J-K	VS2	20	$629 AUD	99%
J-K	VVS2	90	$767 AUD	79%
L-M	VS1	31	$584 AUD	65%
N+	I	130	$477 AUD	138%
N+	IF	86	$1,804 AUD	98%
N+	SI1	1,326	$482 AUD	143%
N+	SI2	477	$339 AUD	196%
N+	VS1	13,253	$630 AUD	137%
N+	VS2	5,045	$601 AUD	140%
N+	VVS1	845	$750 AUD	144%
N+	VVS2	9,053	$644 AUD	133%
N+	other	843	$2,182 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