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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 2233935785

Certificate GIA 2233935785

Diamond specifications and retailer prices

From $3,893 AUD
As of November 6, 2026
Save $4,933 AUD (56%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $8,826 AUD at MOH London · As of November 2, 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 H 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 2233935785. Listed at 9 retailers as of November 2, 2026, with prices from $3,893 to $8,826, a $4,933 spread on the same certified stone. MOH London lists it at $8,826. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle35.22°
OriginNatural
Grading LabGIA
CertificateGIA 2233935785
Dimensions7.38 × 5.85 × 4.08 mm
L/W Ratio1.26
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.38 mm5.85 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2233935785
Side View
Table 66.0%CrownGirdle: THK-VTKPavilion 35.22°Culet: NoneDepth 69.8%

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: $8,826 AUD|Low: $3,893 AUD|High: $9,953 AUD|Avg: $6,006 AUD|-11.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5$3,893 AUD
Retailer 7$4,851 AUD
Retailer 2$5,085 AUD
Retailer 4$5,423 AUD
Retailer 6$5,678 AUD
Retailer 8$5,758 AUD
Retailer 3$6,311 AUD
MOH London$8,826 AUD

45 data points across 8 retailers

9 retailers$3,893 AUD to $8,826 AUD

A
Cheapest Retailer
-
$3,893 AUD
A
Retailer 2
-
$4,851 AUD
View
A
Retailer 3
-
$5,085 AUD
View
A
Retailer 4
-
$5,423 AUD
View
A
Retailer 5
-
$5,678 AUD
View
A
Retailer 6
-
$5,758 AUD
View
Final sale: no returns
A
Retailer 7
-
$5,957 AUD
View
A
Retailer 8
-
$6,311 AUD
View
Most Expensive
B
MOH London
F52CB94D7 · Nov 2
$8,826 AUD
£4,775 GBP
View
8 more retailers have this diamond
Prices start from $3,893 AUDSave up to $4,933 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
$3,893 AUD