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Cushion|Natural|GIA

0.40ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 1385543417

Certificate GIA 1385543417

Diamond specifications and retailer prices

From $585 AUD
As of November 6, 2026
Save $1,282 AUD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,867 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1385543417. Listed at 10 retailers as of November 4, 2026, with prices from $585 to $1,867, a $1,282 spread on the same certified stone. MOH London lists it at $1,867. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.40
Carat
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1385543417
Dimensions4.52 × 3.98 × 2.73 mm
L/W Ratio1.14
Top View
4.52 mm3.98 mm0.40 ctE / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1385543417
Side View
Table 57.0%CrownGirdle: Ext. ThickPavilionCulet: NoneDepth 68.7%

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: $1,867 AUD|Low: $585 AUD|High: $1,952 AUD|Avg: $1,098 AUD|-4.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2$585 AUD
Retailer 5$786 AUD
Retailer 6$945 AUD
Retailer 9$974 AUD
Retailer 4$1,006 AUD
Retailer 7$1,109 AUD
Retailer 8$1,148 AUD
Retailer 3$1,196 AUD
MOH London$1,867 AUD

34 data points across 9 retailers

10 retailers$585 AUD to $1,867 AUD

A
Cheapest Retailer
-
$585 AUD
B+
Retailer 2
-
$786 AUD
View
B+
Retailer 3
-
$945 AUD
View
B+
Retailer 4
-
$974 AUD
View
B+
Retailer 5
-
$1,006 AUD
View
B
Retailer 6
-
$1,109 AUD
View
B
Retailer 7
-
$1,148 AUD
View
B
Retailer 8
-
$1,196 AUD
View
Retailer 9
-
$1,255 AUD
View
Price last confirmed 33 days ago
Most Expensive
C
MOH London
56580BA80 · Nov 4
$1,867 AUD
£1,010 GBP
View
9 more retailers have this diamond
Prices start from $585 AUDSave up to $1,282 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
$585 AUD