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Cushion|Natural|GIA

1.50ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 2231870039

Certificate GIA 2231870039

Diamond specifications and retailer prices

From $4,577 SGD
As of November 6, 2026
Save $5,481 SGD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,057 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct natural 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 stated by the retailer rather than the lab and certified by GIA 2231870039. Listed at 9 retailers as of November 4, 2026, with prices from $4,577 to $10,057, a $5,481 spread on the same certified stone. MOH London lists it at $10,057. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.42°
OriginNatural
Grading LabGIA
CertificateGIA 2231870039
Dimensions7.55 × 5.89 × 4.12 mm
L/W Ratio1.28
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
7.55 mm5.89 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231870039
Side View
Table 63.0%CrownGirdle: STK-VTKPavilion 35.42°Culet: NoneDepth 69.9%

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: $10,057 SGD|Low: $4,577 SGD|High: $10,811 SGD|Avg: $6,643 SGD|-7.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2$4,577 SGD
Retailer 8$5,579 SGD
Retailer 5$5,816 SGD
Retailer 3$5,842 SGD
Retailer 7$6,445 SGD
Retailer 6$6,617 SGD
Retailer 4$7,190 SGD
MOH London$10,057 SGD

35 data points across 8 retailers

9 retailers$4,577 SGD to $10,057 SGD

A
Cheapest Retailer
-
$4,577 SGD
A
Retailer 2
-
$5,579 SGD
View
A
Retailer 3
-
$5,816 SGD
View
A
Retailer 4
-
$5,842 SGD
View
B+
Retailer 5
-
$6,445 SGD
View
A
Retailer 6
-
$6,617 SGD
View
B+
Retailer 7
-
$6,895 SGD
View
A
Retailer 8
-
$7,190 SGD
View
Most Expensive
B+
MOH London
2E5FD910D · Nov 4
$10,057 SGD
£6,179 GBP
View
8 more retailers have this diamond
Prices start from $4,577 SGDSave up to $5,481 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
$4,577 SGD