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Cushion|Natural|GIA

0.40ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 2556005164

Certificate GIA 2556005164

Diamond specifications and retailer prices

From $601 AUD
As of November 6, 2026
Save $726 AUD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,327 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 0.4ct natural cushion diamond

This 0.4ct natural cushion sits in the sub-half-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 2556005164. Listed at 10 retailers as of November 2, 2026, with prices from $601 to $1,327, a $726 spread on the same certified stone. MOH London lists it at $1,327. 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

0.40
Carat
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556005164
Dimensions5.19 × 3.84 × 2.64 mm
L/W Ratio1.35
Top View
5.19 mm3.84 mm0.40 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556005164
Side View
Table 60.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.9%

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: $1,327 AUD|Low: $601 AUD|High: $1,344 AUD|Avg: $954 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4$601 AUD
Retailer 7$619 AUD
Retailer 5$742 AUD
Retailer 6$787 AUD
Retailer 3$1,035 AUD
Retailer 2$1,156 AUD
MOH London$1,327 AUD

42 data points across 7 retailers

10 retailers$601 AUD to $1,327 AUD

A
Cheapest Retailer
-
$601 AUD
Retailer 2
-
$619 AUD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$664 AUD
View
B+
Retailer 4
-
$742 AUD
View
B+
Retailer 5
-
$764 AUD
View
B+
Retailer 6
-
$784 AUD
View
B+
Retailer 7
-
$787 AUD
View
B
Retailer 8
-
$1,035 AUD
View
B
Retailer 9
-
$1,156 AUD
View
Most Expensive
B
MOH London
1BBD7995A · Nov 2
$1,327 AUD
£718 GBP
View
9 more retailers have this diamond
Prices start from $601 AUDSave up to $726 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
0.40ct Cushion
$601 AUD