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Radiant|Lab Grown|IGI

1.51ct I VS2 Radiant Lab Grown Diamond

ID • I/VS2 • IGI LG512225948

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

Certificate IGI LG512225948

Diamond specifications and retailer prices

From $2,419 NZD
As of November 4, 2026
Save $3,243 NZD (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,603 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 I colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG512225948 or 512225948. Listed at 11 retailers as of November 4, 2026, with a 134% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45°
Pavilion angle29.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512225948
Dimensions7.91 × 5.36 × 3.78 mm
L/W Ratio1.48
Girdle conditionFaceted
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
7.91 mm5.36 mm1.51 ctI / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512225948
Side View
Table 67.0%Crown 45°Girdle: STK-THKPavilion 29.5°Culet: NoneDepth 70.5%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $8,603 NZD|Low: $2,419 NZD|High: $8,743 NZD|Avg: $4,587 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
November 5, 2026
Retailer 2$2,419 NZD
Retailer 4$2,604 NZD
Retailer 8$2,834 NZD
Retailer 5$3,021 NZD
Retailer 10$3,327 NZD
Retailer 3$4,099 NZD
Retailer 6$4,762 NZD
Retailer 11$5,483 NZD
Retailer 7$5,662 NZD
Retailer 9$7,292 NZD
MOH London$8,603 NZD

15 data points across 11 retailers

11 retailers$2,419 NZD to $5,662 NZD

B
Cheapest Retailer
-
$2,419 NZD
B
Retailer 2
-
$2,604 NZD
View
B
Retailer 3
-
$2,834 NZD
View
Retailer 4
-
$3,021 NZD
View
Price last confirmed 24 days ago
B
Retailer 5
-
$3,021 NZD
View
B
Retailer 6
-
$3,327 NZD
View
B
Retailer 7
-
$4,762 NZD
View
B
Retailer 8
-
$5,483 NZD
View
B
Retailer 9
-
$5,662 NZD
View
Retailer 10
-
$7,292 NZD
View
Price under review
Most Expensive
MOH London
LG512225948 · Nov 5
$8,603 NZD
£3,808 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $2,419 NZDSave up to $3,243 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.

B
1.51ct Radiant
$2,419 NZD