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Cushion|Natural|GIA

0.40ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 7541549587

Certificate GIA 7541549587

Diamond specifications and retailer prices

From $342 AUD
As of November 6, 2026
Save $780 AUD (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,122 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 J 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 7541549587. Listed at 8 retailers as of November 2, 2026, with prices from $342 to $1,122, a $780 spread on the same certified stone. MOH London lists it at $1,122. 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
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7541549587
Dimensions4.11 × 4.09 × 2.80 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud
Top View
4.11 mm4.09 mm0.40 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7541549587
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.5%

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: $1,122 AUD|Low: $342 AUD|High: $1,135 AUD|Avg: $770 AUD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2$342 AUD
Retailer 6$524 AUD
Retailer 4$620 AUD
Retailer 5$899 AUD
Retailer 3$978 AUD
MOH London$1,122 AUD

31 data points across 6 retailers

8 retailers$342 AUD to $1,122 AUD

A
Cheapest Retailer
-
$342 AUD
Retailer 2
-
$524 AUD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$560 AUD
View
B+
Retailer 4
-
$620 AUD
View
B+
Retailer 5
-
$706 AUD
View
B
Retailer 6
-
$899 AUD
View
B
Retailer 7
-
$978 AUD
View
Most Expensive
B
MOH London
9371DDC65 · Nov 2
$1,122 AUD
£607 GBP
View
7 more retailers have this diamond
Prices start from $342 AUDSave up to $780 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
$342 AUD