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Cushion|Natural|GIA

1.51ct G SI2 Cushion Natural Diamond

EX • G/SI2 • GIA 2231852617

Certificate GIA 2231852617

Diamond specifications and retailer prices

From $3,912 AUD
As of November 6, 2026
Save $4,936 AUD (56%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,848 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231852617. Listed at 8 retailers as of November 4, 2026, with prices from $3,912 to $8,848, a $4,936 spread on the same certified stone. MOH London lists it at $8,848. 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

1.51
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle37.29°
OriginNatural
Grading LabGIA
CertificateGIA 2231852617
Dimensions7.72 × 5.91 × 4.12 mm
L/W Ratio1.31
Key to symbols
Crystal, Feather
Top View
7.72 mm5.91 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231852617
Side View
Table 65.0%CrownGirdle: STK-VTKPavilion 37.29°Culet: NoneDepth 69.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $8,848 AUD|Low: $3,912 AUD|High: $9,933 AUD|Avg: $6,043 AUD|-10.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$3,912 AUD
Retailer 6$4,797 AUD
Retailer 2$5,020 AUD
Retailer 4$5,353 AUD
Retailer 7$5,705 AUD
Retailer 3$6,282 AUD
MOH London$8,848 AUD

44 data points across 7 retailers

8 retailers$3,912 AUD to $8,848 AUD

A
Cheapest Retailer
-
$3,912 AUD
A
Retailer 2
-
$4,797 AUD
View
A
Retailer 3
-
$5,020 AUD
View
A
Retailer 4
-
$5,353 AUD
View
A
Retailer 5
-
$5,705 AUD
View
A
Retailer 6
-
$5,957 AUD
View
A
Retailer 7
-
$6,282 AUD
View
Most Expensive
B+
MOH London
DE74A4A62 · Nov 4
$8,848 AUD
£4,787 GBP
View
7 more retailers have this diamond
Prices start from $3,912 AUDSave up to $4,936 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
1.51ct Cushion
$3,912 AUD