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

As of September 2026, 1.00 to 1.49ct lab grown asscher diamonds range from £155 GBP/ct to £3,849 GBP/ct, with an average of £549 GBP/ct.

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

As of September 2026, the lowest listed price is £155 GBP per carat and the highest is £3,849 GBP per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

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

There are 57,251 active lab grown asscher listings between 1.00 to 1.49ct across 100+ retailers in the Carat Hunter index, refreshed daily.

Lab Grown Asscher Diamonds, 1.00 to 1.49ct

Quick answer

As of September 2026, there are 57,251 lab grown asscher diamonds between 1.00 to 1.49ct listed by at least 52 retailers. A typical stone in this range costs about £659 GBP in total, or £549 GBP per carat, and most listings sit between £155 GBP and £3,849 GBP per carat. The best value grade combination with real depth of stock is D to E SI1 at £279 GBP per carat across 650 listings. The same shape in natural form runs about £2,339 GBP per carat, roughly 4.3 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. Asscher lab grown stones in the index: 526 USD per carat, +3.3% 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 57,251 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2
D-E	$952	$602	$426	$417	$430	$437	$376	$383
F-G	$841	$630	$564	$515	$501	$579	$472	$407
H-I	-	$1,427	$976	$683	$626	$860	$1,296	$1,326
J-K	-	$1,233	$1,187	$1,486	$1,213	$1,051	$914	$1,007
L-M	-	-	-	-	$1,134	-	$1,093	-
N+	-	$597	$485	$567	$540	$576	$526	$527

Price by Colour & Clarity

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

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	870	£705 GBP	123%
D-E	IF	1,547	£446 GBP	101%
D-E	SI1	650	£279 GBP	88%
D-E	SI2	40	£284 GBP	87%
D-E	VS1	11,571	£318 GBP	91%
D-E	VS2	3,896	£324 GBP	92%
D-E	VVS1	9,445	£315 GBP	87%
D-E	VVS2	19,675	£309 GBP	100%
F-G	FL	31	£622 GBP	119%
F-G	IF	176	£466 GBP	102%
F-G	SI1	137	£349 GBP	125%
F-G	SI2	13	£301 GBP	15%
F-G	VS1	2,100	£371 GBP	80%
F-G	VS2	824	£429 GBP	70%
F-G	VVS1	595	£418 GBP	117%
F-G	VVS2	1,886	£381 GBP	84%
H-I	IF	23	£1,056 GBP	33%
H-I	SI1	14	£959 GBP	71%
H-I	SI2	41	£982 GBP	9%
H-I	VS1	308	£463 GBP	93%
H-I	VS2	103	£637 GBP	38%
H-I	VVS1	93	£723 GBP	39%
H-I	VVS2	164	£506 GBP	86%
J-K	IF	12	£913 GBP	13%
J-K	SI1	10	£677 GBP	12%
J-K	SI2	13	£745 GBP	83%
J-K	VS1	29	£898 GBP	86%
J-K	VS2	15	£778 GBP	18%
J-K	VVS1	22	£879 GBP	11%
J-K	VVS2	32	£1,100 GBP	126%
L-M	SI1	10	£809 GBP	7%
L-M	VS1	19	£840 GBP	9%
N+	IF	56	£442 GBP	85%
N+	SI1	50	£389 GBP	89%
N+	SI2	11	£390 GBP	144%
N+	VS1	693	£400 GBP	76%
N+	VS2	326	£426 GBP	80%
N+	VVS1	350	£359 GBP	66%
N+	VVS2	954	£420 GBP	75%
N+	other	447	£984 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