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Cushion|Natural|GIA

0.51ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 6541038495

Certificate GIA 6541038495

Diamond specifications and retailer prices

From £566 GBP
As of November 4, 2026
Save £594 GBP (51%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,160 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural cushion diamond

This 0.51ct 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 6541038495. Listed at 14 retailers as of November 4, 2026, with prices from £566 to £1,160, a £594 spread on the same certified stone. MOH London lists it at £1,160. 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

0.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541038495
Dimensions8.52 × 4.00 × 2.53 mm
L/W Ratio2.13
Top View
8.52 mm4.00 mm0.51 ctE / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541038495
Side View
Table 60.0%CrownGirdle: ThickPavilionCulet: NoneDepth 63.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,160 GBP|Low: £536 GBP|High: £1,168 GBP|Avg: £772 GBP|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 3£566 GBP
Retailer 7£586 GBP
Retailer 9£634 GBP
Retailer 10£642 GBP
Retailer 4£757 GBP
Retailer 11£758 GBP
Retailer 5£777 GBP
Retailer 6£892 GBP
Retailer 8£954 GBP
Retailer 2£979 GBP
MOH London£1,160 GBP

37 data points across 11 retailers

14 retailers£566 GBP to £1,160 GBP

B+
Cheapest Retailer
-
£566 GBP
B+
Retailer 2
-
£586 GBP
View
Final sale: no returns
Retailer 3
-
£634 GBP
View
Price last confirmed 8 days ago
B+
Retailer 4
-
£642 GBP
View
B
Retailer 5
-
£705 GBP
View
B
Retailer 6
-
£734 GBP
View
B
Retailer 7
-
£757 GBP
View
B
Retailer 8
-
£758 GBP
View
B
Retailer 9
-
£777 GBP
View
B
Retailer 10
-
£846 GBP
View
B
Retailer 11
-
£892 GBP
View
Retailer 12
-
£954 GBP
View
Price last confirmed 32 days ago
B
Retailer 13
-
£979 GBP
View
Most Expensive
B
MOH London
32AEDAB61 · Nov 4
£1,160 GBP
View
13 more retailers have this diamond
Prices start from £566 GBPSave up to £594 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.

B+
0.51ct Cushion
£566 GBP