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Radiant|Lab Grown|IGI

1.51ct H VS1 Radiant Lab Grown Diamond

ID • H/VS1 • IGI LG539225590

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

Certificate IGI LG539225590

Diamond specifications and retailer prices

From $509 NZD
As of November 4, 2026
Save $1,748 NZD (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,257 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.51ct lab-grown radiant diamond

This 1.51ct 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 top-tier cut grade and certified by IGI LG539225590 or 539225590. Listed at 17 retailers as of November 4, 2026, with prices from $509 to $2,257, a $1,748 spread on the same certified stone. MOH London lists it at $2,257. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG539225590
Dimensions8.03 × 5.94 × 3.74 mm
L/W Ratio1.35
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
8.03 mm5.94 mm1.51 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG539225590
Side View
Table 65.5%Crown 40.1°Girdle: MediumPavilion 33.9°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
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: $2,257 NZD|Low: $509 NZD|High: $2,291 NZD|Avg: $1,312 NZD|-1.3%
MOH London
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
November 5, 2026
Retailer 3$509 NZD
Retailer 13$564 NZD
Retailer 2$852 NZD
Retailer 5$903 NZD
Retailer 12$942 NZD
Retailer 8$974 NZD
Retailer 14$1,164 NZD
Retailer 7$1,320 NZD
Retailer 6$1,513 NZD
Retailer 11$1,597 NZD
Retailer 10$1,735 NZD
Retailer 9$1,880 NZD
Retailer 4$2,189 NZD
MOH London$2,257 NZD

25 data points across 14 retailers

17 retailers$509 NZD to $2,257 NZD

Retailer 1
-
$436 NZD
Price last confirmed 34 days ago
A
Retailer 2
-
$509 NZD
View
Final sale: no returns
Retailer 3
-
$529 NZD
View
Price last confirmed 39 days ago
Retailer 4
-
$564 NZD
View
Price last confirmed 33 days ago
A
Retailer 5
-
$852 NZD
View
A
Retailer 6
-
$903 NZD
View
A
Retailer 7
-
$942 NZD
View
A
Retailer 8
-
$974 NZD
View
B+
Retailer 9
-
$1,164 NZD
View
B+
Retailer 10
-
$1,320 NZD
View
B+
Retailer 11
-
$1,570 NZD
View
Retailer 12
-
$1,597 NZD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$1,735 NZD
View
Retailer 14
-
$1,815 NZD
View
Price last confirmed 36 days ago
B
Retailer 15
-
$1,880 NZD
View
B
Retailer 16
-
$1,905 NZD
View
Most Expensive
B
MOH London
LG539225590 · Nov 5
$2,257 NZD
£1,002 GBP
View
16 more retailers have this diamond
Prices start from $509 NZDSave up to $1,748 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
1.51ct Radiant
$509 NZD