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Radiant|Lab Grown|IGI

1.50ct H VS1 Radiant Lab Grown Diamond

VG • H/VS1 • IGI LG570375731

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG570375731

Diamond specifications and retailer prices

From $323 NZD
As of November 4, 2026
Save $1,759 NZD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,082 NZD at Flawless Fine Jewelry · As of November 4, 2026
View at Flawless Fine Jewelry

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG570375731 or 570375731. Listed at 17 retailers as of November 4, 2026, with prices from $323 to $2,082, a $1,759 spread on the same certified stone. Flawless Fine Jewelry lists it at $2,082. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
H
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570375731
Dimensions7.73 × 5.77 × 4.00 mm
L/W Ratio1.34
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.73 mm5.77 mm1.50 ctH / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570375731
Side View
Table 67.5%Crown 37.7°Girdle: THN-STKPavilion 34.9°Culet: NoneDepth 69.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $2,082 NZD|Low: $248 NZD|High: $2,082 NZD|Avg: $791 NZD
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 5, 2026
Retailer 13$323 NZD
Retailer 7$373 NZD
Retailer 4$374 NZD
Retailer 5$401 NZD
Retailer 14$401 NZD
Retailer 8$454 NZD
Retailer 11$662 NZD
Retailer 10$690 NZD
Retailer 16$708 NZD
Retailer 3$848 NZD
Retailer 6$859 NZD
Retailer 9$931 NZD
Retailer 15$1,286 NZD
Retailer 12$1,359 NZD
Retailer 2$1,864 NZD
Flawless Fine Jewelry$2,082 NZD

31 data points across 16 retailers

17 retailers$323 NZD to $2,082 NZD

A
Cheapest Retailer
-
$323 NZD
A
Retailer 2
-
$373 NZD
View
Final sale: no returns
A
Retailer 3
-
$374 NZD
View
Retailer 4
-
$401 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$401 NZD
View
A
Retailer 6
-
$454 NZD
View
A
Retailer 7
-
$662 NZD
View
A
Retailer 8
-
$690 NZD
View
B+
Retailer 9
-
$708 NZD
View
B+
Retailer 10
-
$848 NZD
View
B+
Retailer 11
-
$859 NZD
View
A
Retailer 12
-
$931 NZD
View
B+
Retailer 13
-
$1,121 NZD
View
B+
Retailer 14
-
$1,286 NZD
View
B+
Retailer 15
-
$1,359 NZD
View
B
Retailer 16
-
$1,864 NZD
View
Most Expensive
B
Flawless Fine Jewelry
1FB61E525 · Nov 4
$2,082 NZD
£924 GBP
View
16 more retailers have this diamond
Prices start from $323 NZDSave up to $1,759 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.50ct Radiant
$323 NZD