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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 £265 GBP
As of November 6, 2026
Save £613 GBP (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £879 GBP 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 £265 to £879, a £613 spread on the same certified stone. MOH London lists it at £879. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £879 GBP|Low: £238 GBP|High: £891 GBP|Avg: £496 GBP|-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£265 GBP
Retailer 2£282 GBP
Retailer 7£433 GBP
Retailer 5£472 GBP
Retailer 8£477 GBP
Retailer 10£479 GBP
Retailer 9£487 GBP
Retailer 3£559 GBP
Retailer 4£568 GBP
Retailer 6£591 GBP
MOH London£879 GBP

36 data points across 11 retailers

11 retailers£265 GBP to £879 GBP

A
Cheapest Retailer
-
£265 GBP
Final sale: no returns
A
Retailer 2
-
£282 GBP
View
B+
Retailer 3
-
£433 GBP
View
B+
Retailer 4
-
£472 GBP
View
B+
Retailer 5
-
£477 GBP
View
B+
Retailer 6
-
£479 GBP
View
B+
Retailer 7
-
£487 GBP
View
Retailer 8
-
£559 GBP
View
Price last confirmed 34 days ago
B+
Retailer 9
-
£568 GBP
View
B
Retailer 10
-
£591 GBP
View
Most Expensive
B
MOH London
EF6A17268 · Nov 4
£879 GBP
View
10 more retailers have this diamond
Prices start from £265 GBPSave up to £613 GBP

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
£265 GBP