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

As of November 2026, 1.00 to 1.49ct lab grown marquise diamonds range from $141 SGD/ct to $4,535 SGD/ct, with an average of $774 SGD/ct.

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

As of November 2026, the lowest listed price is $141 SGD per carat and the highest is $4,535 SGD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

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

There are 421,263 active lab grown marquise 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 marquise diamond?

Approximately 42% of these diamonds are available at multiple retailers, with an average price spread of 95% between the cheapest and most expensive listing of the same stone.

Lab Grown Marquise Diamonds, 1.00 to 1.49ct

Quick answer

As of November 2026, there are 421,263 listings of lab grown marquise diamonds between 1.00 to 1.49ct from at least 58 retailers. A typical stone in this range costs about $929 SGD in total, or $774 SGD per carat, and most listings sit between $141 SGD and $4,535 SGD per carat. About 42% of these stones are listed by more than one retailer, and the same stone is priced 95% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is D to E VS1 at $618 SGD per carat across 77,866 listings. The same shape in natural form runs about $5,761 SGD per carat, roughly 7.4 times more.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Marquise lab grown stones in the index: 505 USD per carat, +1.6% 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 421,263 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$737	$744	$540	$493	$482	$498	$392	$312	-
F-G	$686	$609	$537	$528	$484	$463	$405	-	-
H-I	-	-	$781	$622	$722	$690	$845	-	-
J-K	-	-	-	$742	$486	-	-	-	-
L-M	-	-	-	$624	$518	-	-	-	-
N+	-	$1,277	$618	$485	$463	$448	$519	$381	$240

Price by Colour & Clarity

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

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	28,901	$945 SGD	117%
D-E	IF	32,188	$953 SGD	112%
D-E	SI1	1,174	$502 SGD	75%
D-E	SI2	40	$400 SGD	87%
D-E	VS1	77,866	$618 SGD	73%
D-E	VS2	17,803	$638 SGD	58%
D-E	VVS1	62,771	$692 SGD	92%
D-E	VVS2	122,667	$632 SGD	88%
F-G	FL	40	$879 SGD	112%
F-G	IF	461	$781 SGD	114%
F-G	SI1	453	$519 SGD	64%
F-G	VS1	15,147	$620 SGD	66%
F-G	VS2	3,571	$593 SGD	69%
F-G	VVS1	4,451	$688 SGD	78%
F-G	VVS2	20,912	$676 SGD	65%
H-I	SI1	164	$1,083 SGD	141%
H-I	VS1	1,316	$925 SGD	104%
H-I	VS2	395	$884 SGD	72%
H-I	VVS1	145	$1,001 SGD	51%
H-I	VVS2	647	$797 SGD	63%
J-K	VS1	55	$623 SGD	86%
J-K	VVS2	38	$951 SGD	124%
L-M	VS1	20	$663 SGD	91%
L-M	VVS2	27	$799 SGD	53%
N+	I	69	$308 SGD	160%
N+	IF	191	$1,637 SGD	87%
N+	SI1	813	$665 SGD	157%
N+	SI2	188	$488 SGD	125%
N+	VS1	12,051	$593 SGD	131%
N+	VS2	4,194	$574 SGD	131%
N+	VVS1	783	$791 SGD	130%
N+	VVS2	10,343	$621 SGD	124%
N+	other	1,379	$1,868 SGD	23%

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