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 €3,426 EUR/ct, with an average of €528 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 €3,426 EUR per carat. The spread reflects differences in color, clarity, cut and retailer pricing.

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

There are 241,601 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 104% 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 241,601 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 €634 EUR in total, or €528 EUR per carat, and most listings sit between €140 EUR and €3,426 EUR per carat. About 53% of these stones are listed by more than one retailer, and the same stone is priced 104% 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 €353 EUR per carat across 9,160 listings. The same shape in natural form runs about €2,851 EUR per carat, roughly 5.4 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. 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 241,601 diamonds in Explorer

Price Distribution

LowHigh

Color	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$620	$622	$446	$417	$406	$394	$358	$343	-
F-G	$549	$599	$410	$409	$411	$401	$476	-	-
H-I	-	-	$360	$435	$505	$1,242	$805	$1,913	$712
J-K	-	-	-	$540	$580	$448	$1,029	-	-
L-M	-	-	-	-	$411	-	-	-	-
N+	-	$1,277	$526	$450	$436	$422	$344	$239	$335

Price by Color & Clarity

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

Color	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	3,711	€555 EUR	116%
D-E	IF	8,281	€557 EUR	109%
D-E	SI1	877	€320 EUR	115%
D-E	SI2	112	€307 EUR	90%
D-E	VS1	51,316	€363 EUR	97%
D-E	VS2	9,160	€353 EUR	103%
D-E	VVS1	34,157	€399 EUR	110%
D-E	VVS2	80,491	€373 EUR	108%
F-G	FL	40	€492 EUR	109%
F-G	IF	160	€536 EUR	96%
F-G	SI1	158	€426 EUR	87%
F-G	VS1	7,081	€368 EUR	85%
F-G	VS2	1,297	€359 EUR	90%
F-G	VVS1	2,102	€367 EUR	115%
F-G	VVS2	9,958	€366 EUR	99%
H-I	I	18	€637 EUR	139%
H-I	SI1	112	€720 EUR	95%
H-I	SI2	73	€1,712 EUR	54%
H-I	VS1	202	€452 EUR	72%
H-I	VS2	69	€1,112 EUR	89%
H-I	VVS1	41	€322 EUR	130%
H-I	VVS2	309	€389 EUR	92%
J-K	SI1	30	€921 EUR	35%
J-K	VS1	27	€519 EUR	68%
J-K	VS2	21	€401 EUR	77%
J-K	VVS2	90	€483 EUR	75%
L-M	VS1	33	€368 EUR	73%
N+	I	129	€299 EUR	138%
N+	IF	89	€1,143 EUR	103%
N+	SI1	1,325	€308 EUR	142%
N+	SI2	482	€214 EUR	196%
N+	VS1	13,532	€391 EUR	138%
N+	VS2	5,142	€377 EUR	139%
N+	VVS1	857	€471 EUR	138%
N+	VVS2	9,291	€403 EUR	133%
N+	other	828	€1,374 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