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Radiant|Lab Grown|IGI

1.51ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG570363588

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

Certificate IGI LG570363588

Diamond specifications and retailer prices

From $325 NZD
As of November 4, 2026
Save $1,757 NZD (84%) vs most expensive(unlock to see where)
16 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 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG570363588 or 570363588. Listed at 16 retailers as of November 4, 2026, with prices from $325 to $2,082, a $1,757 spread on the same certified stone. Flawless Fine Jewelry lists it at $2,082. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle31.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570363588
Dimensions7.83 × 5.80 × 3.79 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
7.83 mm5.80 mm1.51 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570363588
Side View
Table 61.0%Crown 39.9°Girdle: MediumPavilion 31.6°Culet: NoneDepth 65.3%

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: $2,082 NZD|Low: $310 NZD|High: $2,136 NZD|Avg: $951 NZD|-2.5%
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$325 NZD
Retailer 5$376 NZD
Retailer 6$403 NZD
Retailer 14$403 NZD
Retailer 8$454 NZD
Retailer 11$663 NZD
Retailer 10$694 NZD
Retailer 3$708 NZD
Retailer 4$830 NZD
Retailer 7$862 NZD
Retailer 9$937 NZD
Retailer 16$1,293 NZD
Retailer 12$1,366 NZD
Retailer 15$1,675 NZD
Retailer 2$1,873 NZD
Flawless Fine Jewelry$2,082 NZD

30 data points across 16 retailers

16 retailers$325 NZD to $2,082 NZD

A
Cheapest Retailer
-
$325 NZD
A
Retailer 2
-
$376 NZD
View
Retailer 3
-
$403 NZD
View
Price last confirmed 11 days ago
A
Retailer 4
-
$403 NZD
View
A
Retailer 5
-
$454 NZD
View
A
Retailer 6
-
$663 NZD
View
A
Retailer 7
-
$694 NZD
View
B+
Retailer 8
-
$708 NZD
View
A
Retailer 9
-
$830 NZD
View
A
Retailer 10
-
$862 NZD
View
A
Retailer 11
-
$937 NZD
View
B+
Retailer 12
-
$1,293 NZD
View
B+
Retailer 13
-
$1,366 NZD
View
B+
Retailer 14
-
$1,675 NZD
View
B+
Retailer 15
-
$1,873 NZD
View
Most Expensive
B
Flawless Fine Jewelry
0EC8B8240 · Nov 4
$2,082 NZD
£924 GBP
View
15 more retailers have this diamond
Prices start from $325 NZDSave up to $1,757 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
$325 NZD