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Cushion|Natural|GIA

1.51ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 2231946449

Certificate GIA 2231946449

Diamond specifications and retailer prices

From $5,197 AUD
As of November 6, 2026
Save $5,876 AUD (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,074 AUD at MOH London · As of November 7, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231946449. Listed at 9 retailers as of November 6, 2026, with prices from $5,197 to $11,074, a $5,876 spread on the same certified stone. MOH London lists it at $11,074. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle36.21°
OriginNatural
Grading LabGIA
CertificateGIA 2231946449
Dimensions7.57 × 5.91 × 4.14 mm
L/W Ratio1.28
Key to symbols
Crystal, Feather, Pinpoint
Top View
7.57 mm5.91 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2231946449
Side View
Table 65.0%CrownGirdle: MED-VTKPavilion 36.21°Culet: NoneDepth 69.9%

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: $11,074 AUD|Low: $5,197 AUD|High: $12,890 AUD|Avg: $7,867 AUD|-14.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 6$5,197 AUD
Retailer 7$6,248 AUD
Retailer 5$6,520 AUD
Retailer 3$6,593 AUD
Retailer 2$7,424 AUD
Retailer 8$7,473 AUD
Retailer 4$7,999 AUD
MOH London$11,074 AUD

43 data points across 8 retailers

9 retailers$5,197 AUD to $11,074 AUD

A
Cheapest Retailer
-
$5,197 AUD
A
Retailer 2
-
$6,248 AUD
View
A
Retailer 3
-
$6,520 AUD
View
A
Retailer 4
-
$6,593 AUD
View
A
Retailer 5
-
$7,424 AUD
View
A
Retailer 6
-
$7,473 AUD
View
Final sale: no returns
B+
Retailer 7
-
$7,821 AUD
View
A
Retailer 8
-
$7,999 AUD
View
Most Expensive
B+
MOH London
F025DB16D · Nov 7
$11,074 AUD
£5,991 GBP
View
8 more retailers have this diamond
Prices start from $5,197 AUDSave up to $5,876 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
$5,197 AUD