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Radiant|Lab Grown|IGI

1.50ct I SI2 Radiant Lab Grown Diamond

ID • I/SI2 • IGI LG499191895

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

Certificate IGI LG499191895

Diamond specifications and retailer prices

From $1,223 AUD
As of November 6, 2026
Save $4,823 AUD (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,046 AUD at MOH London · As of November 3, 2026
View at MOH London

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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499191895 or 499191895. Listed at 9 retailers as of November 3, 2026, with prices from $1,223 to $6,046, a $4,823 spread on the same certified stone. MOH London lists it at $6,046. 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

1.50
Carat
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499191895
Dimensions7.64 × 5.56 × 4.03 mm
L/W Ratio1.37
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
7.64 mm5.56 mm1.50 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499191895
Side View
Table 62.0%Crown 40.3°Girdle: Slightly ThickPavilion 32.8°Culet: NoneDepth 72.5%

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 6
Current: $6,046 AUD|Low: $1,223 AUD|High: $6,127 AUD|Avg: $2,923 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2$1,223 AUD
Retailer 3$1,623 AUD
Retailer 7$1,765 AUD
Retailer 4$1,882 AUD
Retailer 9$2,692 AUD
Retailer 5$2,994 AUD
Retailer 6$3,528 AUD
Retailer 8$3,818 AUD
MOH London$6,046 AUD

16 data points across 9 retailers

9 retailers$1,223 AUD to $6,046 AUD

A
Cheapest Retailer
-
$1,223 AUD
B+
Retailer 2
-
$1,623 AUD
View
B+
Retailer 3
-
$1,765 AUD
View
Retailer 4
-
$1,882 AUD
View
Price last confirmed 26 days ago
B+
Retailer 5
-
$1,882 AUD
View
B
Retailer 6
-
$2,994 AUD
View
B
Retailer 7
-
$3,528 AUD
View
B
Retailer 8
-
$3,818 AUD
View
Most Expensive
B
MOH London
LG499191895 · Nov 3
$6,046 AUD
£3,271 GBP
View
8 more retailers have this diamond
Prices start from $1,223 AUDSave up to $4,823 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.

A
1.50ct Radiant
$1,223 AUD