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Cushion|Natural|GIA

0.50ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 3555425226

Certificate GIA 3555425226

Diamond specifications and retailer prices

From $517 AUD
As of November 6, 2026
Save $1,195 AUD (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,712 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 0.5ct natural cushion diamond

This 0.5ct natural cushion sits in the half to three-quarter 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 3555425226. Listed at 11 retailers as of November 4, 2026, with prices from $517 to $1,712, a $1,195 spread on the same certified stone. MOH London lists it at $1,712. 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

0.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555425226
Dimensions4.55 × 4.51 × 3.11 mm
L/W Ratio1.01
Girdle conditionVery Thick
Top View
4.55 mm4.51 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555425226
Side View
Table 63.0%CrownGirdle: MediumPavilionCulet: NoneDepth 68.8%

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: $1,712 AUD|Low: $464 AUD|High: $1,736 AUD|Avg: $966 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 11$517 AUD
Retailer 2$549 AUD
Retailer 7$844 AUD
Retailer 5$920 AUD
Retailer 8$930 AUD
Retailer 10$933 AUD
Retailer 9$949 AUD
Retailer 3$1,089 AUD
Retailer 4$1,106 AUD
Retailer 6$1,151 AUD
MOH London$1,712 AUD

36 data points across 11 retailers

11 retailers$517 AUD to $1,712 AUD

A
Cheapest Retailer
-
$517 AUD
Final sale: no returns
A
Retailer 2
-
$549 AUD
View
B+
Retailer 3
-
$844 AUD
View
B+
Retailer 4
-
$920 AUD
View
B+
Retailer 5
-
$930 AUD
View
B+
Retailer 6
-
$933 AUD
View
B+
Retailer 7
-
$949 AUD
View
Retailer 8
-
$1,089 AUD
View
Price last confirmed 34 days ago
B+
Retailer 9
-
$1,106 AUD
View
B
Retailer 10
-
$1,151 AUD
View
Most Expensive
B
MOH London
EF6A17268 · Nov 4
$1,712 AUD
£926 GBP
View
10 more retailers have this diamond
Prices start from $517 AUDSave up to $1,195 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
0.50ct Cushion
$517 AUD