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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 $5,023 CAD
As of November 6, 2026
Save $6,015 CAD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,038 CAD 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 $5,023 to $11,038, a $6,015 spread on the same certified stone. MOH London lists it at $11,038. 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
Color
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: $11,038 CAD|Low: $5,023 CAD|High: $11,865 CAD|Avg: $7,291 CAD|-7.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2$5,023 CAD
Retailer 8$6,123 CAD
Retailer 5$6,383 CAD
Retailer 3$6,411 CAD
Retailer 7$7,074 CAD
Retailer 6$7,262 CAD
Retailer 4$7,891 CAD
MOH London$11,038 CAD

35 data points across 8 retailers

9 retailers$5,023 CAD to $11,038 CAD

A
Cheapest Retailer
-
$5,023 CAD
A
Retailer 2
-
$6,123 CAD
View
A
Retailer 3
-
$6,383 CAD
View
A
Retailer 4
-
$6,411 CAD
View
B+
Retailer 5
-
$7,074 CAD
View
A
Retailer 6
-
$7,262 CAD
View
B+
Retailer 7
-
$7,568 CAD
View
A
Retailer 8
-
$7,891 CAD
View
Most Expensive
B+
MOH London
2E5FD910D · Nov 4
$11,038 CAD
£6,179 GBP
View
8 more retailers have this diamond
Prices start from $5,023 CADSave up to $6,015 CAD

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
$5,023 CAD