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Cushion|Natural|GIA

0.50ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 6551379430

Certificate GIA 6551379430

Diamond specifications and retailer prices

From £384 GBP
As of November 4, 2026
Save £576 GBP (60%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £960 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551379430. Listed at 11 retailers as of November 4, 2026, with prices from £384 to £960, a £576 spread on the same certified stone. MOH London lists it at £960. 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

0.50
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551379430
Dimensions4.45 × 4.33 × 3.05 mm
L/W Ratio1.03
Key to symbols
Crystal
Top View
4.45 mm4.33 mm0.50 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551379430
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 70.3%

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 4
Current: £960 GBP|Low: £347 GBP|High: £961 GBP|Avg: £571 GBP|+0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 4, 2026
Retailer 9£384 GBP
Retailer 8£448 GBP
Retailer 10£480 GBP
Retailer 2£521 GBP
Retailer 6£521 GBP
Retailer 7£564 GBP
Retailer 3£583 GBP
Retailer 4£617 GBP
Retailer 11£618 GBP
Retailer 5£643 GBP
MOH London£960 GBP

44 data points across 11 retailers

11 retailers£384 GBP to £960 GBP

A
Cheapest Retailer
-
£384 GBP
Final sale: no returns
Retailer 2
-
£448 GBP
View
Price last confirmed 8 days ago
B+
Retailer 3
-
£480 GBP
View
B+
Retailer 4
-
£521 GBP
View
B+
Retailer 5
-
£521 GBP
View
B
Retailer 6
-
£564 GBP
View
Retailer 7
-
£583 GBP
View
Price last confirmed 13 days ago
B+
Retailer 8
-
£617 GBP
View
Retailer 9
-
£618 GBP
View
Price last confirmed 33 days ago
Retailer 10
-
£643 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
MOH London
CA35B94D7 · Nov 4
£960 GBP
View
10 more retailers have this diamond
Prices start from £384 GBPSave up to £576 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
£384 GBP