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Cushion|Natural|GIA

0.40ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 7551182536

Certificate GIA 7551182536

Diamond specifications and retailer prices

From $403 AUD
As of November 6, 2026
Save $913 AUD (69%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,316 AUD at MOH London · As of November 4, 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 I 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 7551182536. Listed at 7 retailers as of November 4, 2026, with prices from $403 to $1,316, a $913 spread on the same certified stone. MOH London lists it at $1,316. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551182536
Dimensions4.26 × 4.20 × 2.84 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
4.26 mm4.20 mm0.40 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7551182536
Side View
Table 63.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 67.7%

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: $1,316 AUD|Low: $403 AUD|High: $1,333 AUD|Avg: $822 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 2$403 AUD
Retailer 5$614 AUD
Retailer 4$736 AUD
Retailer 3$1,030 AUD
MOH London$1,316 AUD

42 data points across 5 retailers

7 retailers$403 AUD to $1,316 AUD

A
Cheapest Retailer
-
$403 AUD
B+
Retailer 2
-
$600 AUD
View
Retailer 3
-
$614 AUD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$736 AUD
View
B+
Retailer 5
-
$779 AUD
View
B
Retailer 6
-
$1,030 AUD
View
Most Expensive
B
MOH London
354ACE637 · Nov 4
$1,316 AUD
£712 GBP
View
6 more retailers have this diamond
Prices start from $403 AUDSave up to $913 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
$403 AUD