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Cushion|Natural|GIA

0.40ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 6555182513

Certificate GIA 6555182513

Diamond specifications and retailer prices

From $602 CAD
As of November 6, 2026
Save $1,313 CAD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,915 CAD 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555182513. Listed at 10 retailers as of November 4, 2026, with prices from $602 to $1,915, a $1,313 spread on the same certified stone. MOH London lists it at $1,915. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555182513
Dimensions4.14 × 4.08 × 2.82 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud
Top View
4.14 mm4.08 mm0.40 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555182513
Side View
Table 63.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 69.2%

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: $1,915 CAD|Low: $602 CAD|High: $1,940 CAD|Avg: $1,187 CAD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2$602 CAD
Retailer 4$1,003 CAD
Retailer 6$1,097 CAD
Retailer 7$1,137 CAD
Retailer 3$1,221 CAD
Retailer 8$1,248 CAD
Retailer 5$1,287 CAD
MOH London$1,915 CAD

37 data points across 8 retailers

10 retailers$602 CAD to $1,915 CAD

A
Cheapest Retailer
-
$602 CAD
B+
Retailer 2
-
$958 CAD
View
B+
Retailer 3
-
$990 CAD
View
B+
Retailer 4
-
$1,003 CAD
View
B+
Retailer 5
-
$1,097 CAD
View
B+
Retailer 6
-
$1,137 CAD
View
B+
Retailer 7
-
$1,221 CAD
View
Retailer 8
-
$1,248 CAD
View
Price last confirmed 33 days ago
B+
Retailer 9
-
$1,287 CAD
View
Most Expensive
B
MOH London
238577F87 · Nov 4
$1,915 CAD
£1,072 GBP
View
9 more retailers have this diamond
Prices start from $602 CADSave up to $1,313 CAD

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
$602 CAD