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

As of October 2026, 1.00 to 1.49ct lab grown radiant diamonds range from $202 SGD/ct to $21,415 SGD/ct, with an average of $810 SGD/ct.

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

As of October 2026, the lowest listed price is $202 SGD per carat and the highest is $21,415 SGD per carat. The spread reflects differences in colour, clarity, cut and retailer pricing.

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

There are 359,244 active lab grown radiant 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 radiant diamond?

Approximately 45% of these diamonds are available at multiple retailers, with an average price spread of 111% between the cheapest and most expensive listing of the same stone.

Lab Grown Radiant Diamonds, 1.00 to 1.49ct

Quick answer

As of October 2026, there are 359,244 listings of lab grown radiant diamonds between 1.00 to 1.49ct from at least 61 retailers. A typical stone in this range costs about $972 SGD in total, or $810 SGD per carat, and most listings sit between $202 SGD and $21,415 SGD per carat. About 45% of these stones are listed by more than one retailer, and the same stone is priced 111% apart on average between its cheapest and most expensive seller. The best value grade combination with real depth of stock is F to G VS2 at $580 SGD per carat across 7,875 listings. The same shape in natural form runs about $4,777 SGD per carat, roughly 5.9 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. Radiant lab grown stones in the index: 474 USD per carat, -2.1% 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 359,244 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$741	$582	$490	$486	$471	$453	$411	$601	$340
F-G	$767	$607	$546	$471	$460	$452	$437	$428	-
H-I	-	$1,313	$673	$492	$460	$506	$769	-	-
J-K	-	-	-	$598	$715	$910	$483	$908	-
L-M	-	-	-	$550	-	-	-	-	-
N+	$1,121	$1,019	$572	$469	$463	$440	$508	$566	$1,226

Price by Colour & Clarity

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

Colour	Clarity	Listings	Avg Price/ct	Spread
D-E	FL	7,785	$951 SGD	107%
D-E	I	23	$436 SGD	119%
D-E	IF	16,400	$746 SGD	116%
D-E	SI1	2,326	$527 SGD	75%
D-E	SI2	146	$771 SGD	83%
D-E	VS1	70,345	$604 SGD	75%
D-E	VS2	20,133	$580 SGD	78%
D-E	VVS1	42,583	$628 SGD	107%
D-E	VVS2	80,814	$623 SGD	89%
F-G	FL	96	$983 SGD	125%
F-G	IF	1,103	$779 SGD	112%
F-G	SI1	1,296	$560 SGD	75%
F-G	SI2	86	$549 SGD	105%
F-G	VS1	28,935	$590 SGD	77%
F-G	VS2	7,875	$580 SGD	72%
F-G	VVS1	2,749	$701 SGD	79%
F-G	VVS2	23,806	$604 SGD	76%
H-I	IF	50	$1,683 SGD	82%
H-I	SI1	98	$987 SGD	77%
H-I	VS1	2,128	$590 SGD	71%
H-I	VS2	746	$649 SGD	64%
H-I	VVS1	250	$863 SGD	66%
H-I	VVS2	1,472	$631 SGD	75%
J-K	SI1	14	$619 SGD	133%
J-K	SI2	12	$1,164 SGD	85%
J-K	VS1	54	$917 SGD	119%
J-K	VS2	46	$1,167 SGD	86%
J-K	VVS2	75	$767 SGD	103%
L-M	VVS2	13	$705 SGD	59%
N+	FL	51	$1,437 SGD	92%
N+	I	32	$1,572 SGD	1176%
N+	IF	402	$1,306 SGD	123%
N+	SI1	1,583	$652 SGD	141%
N+	SI2	320	$725 SGD	181%
N+	VS1	19,492	$594 SGD	127%
N+	VS2	7,540	$564 SGD	124%
N+	VVS1	1,516	$733 SGD	110%
N+	VVS2	14,997	$602 SGD	123%
N+	other	1,852	$1,875 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