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

As of November 2026, 1.00 to 1.49ct lab grown radiant diamonds range from $275 NZD/ct to $29,490 NZD/ct, with an average of $1,112 NZD/ct.

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

As of November 2026, the lowest listed price is $275 NZD per carat and the highest is $29,490 NZD 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 367,145 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 November 2026, there are 367,145 listings of lab grown radiant diamonds between 1.00 to 1.49ct from at least 62 retailers. A typical stone in this range costs about $1,334 NZD in total, or $1,112 NZD per carat, and most listings sit between $275 NZD and $29,490 NZD 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 $803 NZD per carat across 7,971 listings. The same shape in natural form runs about $6,692 NZD per carat, roughly 6.0 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. Radiant lab grown stones in the index: 489 USD per carat, -0.7% 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 367,145 diamonds in Explorer

Price Distribution

LowHigh

Colour	FL	IF	VVS1	VVS2	VS1	VS2	SI1	SI2	I
D-E	$734	$585	$497	$487	$472	$453	$411	$586	$334
F-G	$808	$625	$537	$471	$461	$452	$443	$428	-
H-I	-	$1,391	$673	$486	$457	$504	$668	-	-
J-K	-	-	-	$594	$677	$943	$483	-	-
L-M	-	-	-	$550	-	-	-	-	-
N+	$1,132	$1,020	$567	$464	$453	$437	$508	$569	$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	8,024	$1,305 NZD	100%
D-E	I	22	$593 NZD	125%
D-E	IF	16,531	$1,040 NZD	115%
D-E	SI1	2,394	$730 NZD	74%
D-E	SI2	145	$1,042 NZD	73%
D-E	VS1	72,747	$839 NZD	75%
D-E	VS2	20,605	$805 NZD	77%
D-E	VVS1	41,943	$884 NZD	106%
D-E	VVS2	83,206	$866 NZD	89%
F-G	FL	94	$1,437 NZD	116%
F-G	IF	1,092	$1,111 NZD	109%
F-G	SI1	1,271	$787 NZD	73%
F-G	SI2	92	$761 NZD	86%
F-G	VS1	29,169	$820 NZD	81%
F-G	VS2	7,971	$803 NZD	72%
F-G	VVS1	2,872	$955 NZD	81%
F-G	VVS2	23,759	$838 NZD	79%
H-I	IF	49	$2,473 NZD	68%
H-I	SI1	103	$1,187 NZD	84%
H-I	VS1	2,142	$813 NZD	69%
H-I	VS2	735	$897 NZD	62%
H-I	VVS1	253	$1,197 NZD	55%
H-I	VVS2	1,496	$864 NZD	74%
J-K	SI1	14	$859 NZD	133%
J-K	VS1	54	$1,204 NZD	130%
J-K	VS2	44	$1,676 NZD	79%
J-K	VVS2	71	$1,057 NZD	98%
L-M	VVS2	13	$977 NZD	56%
N+	FL	54	$2,013 NZD	92%
N+	I	35	$2,180 NZD	1179%
N+	IF	403	$1,814 NZD	122%
N+	SI1	1,601	$903 NZD	146%
N+	SI2	327	$1,011 NZD	201%
N+	VS1	20,573	$806 NZD	131%
N+	VS2	7,837	$777 NZD	126%
N+	VVS1	1,587	$1,008 NZD	114%
N+	VVS2	15,642	$825 NZD	127%
N+	other	2,175	$2,473 NZD	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