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Radiant|Lab Grown|IGI

1.50ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG778660444

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

Certificate IGI LG778660444

Diamond specifications and retailer prices

From $245 SGD
As of November 6, 2026
Save $1,171 SGD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,416 SGD at MOH London · As of November 5, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778660444 or 778660444. Listed at 16 retailers as of November 5, 2026, with prices from $245 to $1,416, a $1,171 spread on the same certified stone. MOH London lists it at $1,416. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778660444
Dimensions8.24 × 5.72 × 3.74 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.24 mm5.72 mm1.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778660444
Side View
Table 65.0%Crown 38.9°Girdle: Slightly ThickPavilion 33.7°Culet: NoneDepth 65.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $1,416 SGD|Low: $238 SGD|High: $1,453 SGD|Avg: $728 SGD|-2.6%
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
Retailer 15
Retailer 16
November 6, 2026
Retailer 3$245 SGD
Retailer 16$273 SGD
Retailer 12$285 SGD
Retailer 7$304 SGD
Retailer 8$305 SGD
Retailer 4$532 SGD
Retailer 2$546 SGD
Retailer 14$601 SGD
Retailer 15$729 SGD
Retailer 11$789 SGD
Retailer 10$923 SGD
Retailer 13$977 SGD
Retailer 5$991 SGD
Retailer 6$1,045 SGD
Retailer 9$1,320 SGD
MOH London$1,416 SGD

34 data points across 16 retailers

16 retailers$245 SGD to $1,416 SGD

A
Cheapest Retailer
-
$245 SGD
A
Retailer 2
-
$273 SGD
View
Final sale: no returns
A
Retailer 3
-
$285 SGD
View
A
Retailer 4
-
$304 SGD
View
Retailer 5
-
$305 SGD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$532 SGD
View
A
Retailer 7
-
$546 SGD
View
A
Retailer 8
-
$601 SGD
View
A
Retailer 9
-
$729 SGD
View
B+
Retailer 10
-
$789 SGD
View
B+
Retailer 11
-
$923 SGD
View
B+
Retailer 12
-
$977 SGD
View
B+
Retailer 13
-
$991 SGD
View
B+
Retailer 14
-
$1,045 SGD
View
B
Retailer 15
-
$1,320 SGD
View
Most Expensive
B
MOH London
LG778660444 · Nov 5
$1,416 SGD
£870 GBP
View
15 more retailers have this diamond
Prices start from $245 SGDSave up to $1,171 SGD

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
$245 SGD