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Radiant|Lab Grown|IGI

1.32ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG512205136

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

Certificate IGI LG512205136

Diamond specifications and retailer prices

From $1,062 AUD
As of November 6, 2026
Save $2,665 AUD (71%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,955 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.32ct lab-grown radiant diamond

This 1.32ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512205136 or 512205136. Listed at 11 retailers as of November 6, 2026, with a 251% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.32
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512205136
Dimensions7.15 × 5.43 × 3.85 mm
L/W Ratio1.32
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
7.15 mm5.43 mm1.32 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512205136
Side View
Table 66.5%Crown 37.7°Girdle: MediumPavilion 33.1°Culet: NoneDepth 70.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,955 AUD|Low: $1,062 AUD|High: $5,028 AUD|Avg: $2,197 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 4$1,062 AUD
Retailer 7$1,142 AUD
Retailer 11$1,243 AUD
Retailer 3$1,326 AUD
Retailer 8$1,326 AUD
Retailer 5$1,579 AUD
Retailer 2$2,011 AUD
Retailer 10$2,141 AUD
Retailer 6$3,152 AUD
Retailer 9$3,727 AUD
MOH London$4,955 AUD

44 data points across 11 retailers

11 retailers$1,062 AUD to $3,727 AUD

B+
Cheapest Retailer
-
$1,062 AUD
B+
Retailer 2
-
$1,142 AUD
View
B+
Retailer 3
-
$1,243 AUD
View
Retailer 4
-
$1,326 AUD
View
Price last confirmed 26 days ago
B
Retailer 5
-
$1,326 AUD
View
B
Retailer 6
-
$1,579 AUD
View
B
Retailer 7
-
$2,011 AUD
View
B
Retailer 8
-
$2,141 AUD
View
B
Retailer 9
-
$3,152 AUD
View
B
Retailer 10
-
$3,727 AUD
View
Most Expensive
MOH London
LG512205136 · Nov 5
$4,955 AUD
£2,681 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $1,062 AUDSave up to $2,665 AUD

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+
1.32ct Radiant
$1,062 AUD