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Cushion|Lab Grown|IGI

1.50ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG750586531

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG750586531

Diamond specifications and retailer prices

From $497 SGD
As of November 6, 2026
Save $976 SGD (66%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,473 SGD at MOH London · As of November 5, 2026
View at MOH London

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion 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 LG750586531 or 750586531. Listed at 5 retailers as of November 5, 2026, with prices from $497 to $1,473, a $976 spread on the same certified stone. MOH London lists it at $1,473. 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 angle38.6°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750586531
Dimensions6.47 × 6.44 × 4.27 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.47 mm6.44 mm1.50 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750586531
Side View
Table 59.0%Crown 38.6°Girdle: STK-VTKPavilion 34°Culet: NoneDepth 66.3%

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 6
Current: $1,473 SGD|Low: $497 SGD|High: $1,494 SGD|Avg: $866 SGD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 4$497 SGD
Retailer 5$620 SGD
Retailer 2$687 SGD
Retailer 3$1,102 SGD
MOH London$1,473 SGD

38 data points across 5 retailers

5 retailers$497 SGD to $1,473 SGD

B+
Cheapest Retailer
-
$497 SGD
A
Retailer 2
-
$620 SGD
View
A
Retailer 3
-
$687 SGD
View
B+
Retailer 4
-
$1,102 SGD
View
Most Expensive
B
MOH London
LG750586531 · Nov 5
$1,473 SGD
£905 GBP
View
4 more retailers have this diamond
Prices start from $497 SGDSave up to $976 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 Cushion
$497 SGD