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Cushion|Natural|GIA

0.40ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 5436293478

Certificate GIA 5436293478

Diamond specifications and retailer prices

From $726 AUD
As of November 6, 2026
Save $1,255 AUD (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,981 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 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 5436293478. Listed at 15 retailers as of November 4, 2026, with prices from $726 to $1,981, a $1,255 spread on the same certified stone. MOH London lists it at $1,981. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5436293478
Dimensions4.41 × 4.12 × 2.85 mm
L/W Ratio1.07
Top View
4.41 mm4.12 mm0.40 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5436293478
Side View
Table 56.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 69.2%

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: $1,981 AUD|Low: $830 AUD|High: $2,007 AUD|Avg: $1,197 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 3$830 AUD
Retailer 9$926 AUD
Retailer 10$949 AUD
Retailer 2$1,038 AUD
Retailer 4$1,135 AUD
Retailer 5$1,151 AUD
Retailer 7$1,176 AUD
Retailer 8$1,291 AUD
Retailer 6$1,332 AUD
MOH London$1,981 AUD

43 data points across 10 retailers

15 retailers$726 AUD to $1,981 AUD

A
Cheapest Retailer
-
$726 AUD
A
Retailer 2
-
$830 AUD
View
B+
Retailer 3
-
$899 AUD
View
Retailer 4
-
$926 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$991 AUD
View
B+
Retailer 6
-
$1,038 AUD
View
B+
Retailer 7
-
$1,049 AUD
View
B+
Retailer 8
-
$1,135 AUD
View
B+
Retailer 9
-
$1,151 AUD
View
B+
Retailer 10
-
$1,176 AUD
View
B
Retailer 11
-
$1,196 AUD
View
B
Retailer 12
-
$1,231 AUD
View
Retailer 13
-
$1,291 AUD
View
Price last confirmed 33 days ago
B+
Retailer 14
-
$1,332 AUD
View
Most Expensive
B
MOH London
D4368579A · Nov 4
$1,981 AUD
£1,072 GBP
View
14 more retailers have this diamond
Prices start from $726 AUDSave up to $1,255 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
$726 AUD