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Cushion|Natural|GIA

3.51ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 2557628032

Certificate GIA 2557628032

Diamond specifications and retailer prices

From £39,214 GBP
As of November 5, 2026
Save £25,162 GBP (39%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £64,375 GBP at MOH London · As of November 7, 2026
View at MOH London

About this 3.51ct natural cushion diamond

This 3.51ct natural cushion sits in the three to five 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 2557628032. Listed at 13 retailers as of November 5, 2026, with prices from £39,214 to £64,375, a £25,162 spread on the same certified stone. MOH London lists it at £64,375. 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

3.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557628032
Dimensions9.61 × 7.78 × 5.42 mm
L/W Ratio1.24
Culet sizeNone
Top View
9.61 mm7.78 mm3.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557628032
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.7%

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 5
Current: £64,375 GBP|Low: £39,802 GBP|High: £65,502 GBP|Avg: £47,102 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 10£39,802 GBP
Retailer 7£40,594 GBP
Retailer 9£40,594 GBP
Retailer 6£41,804 GBP
Retailer 2£41,844 GBP
Retailer 11£43,977 GBP
Retailer 3£46,514 GBP
Retailer 8£49,068 GBP
Retailer 4£49,253 GBP
Retailer 5£49,847 GBP
MOH London£64,375 GBP

44 data points across 11 retailers

13 retailers£39,214 GBP to £64,375 GBP

B+
Cheapest Retailer
-
£39,214 GBP
B+
Retailer 2
-
£39,802 GBP
View
B+
Retailer 3
-
£40,594 GBP
View
B+
Retailer 4
-
£40,594 GBP
View
B+
Retailer 5
-
£41,804 GBP
View
B+
Retailer 6
-
£41,844 GBP
View
B+
Retailer 7
-
£43,977 GBP
View
B+
Retailer 8
-
£46,514 GBP
View
B+
Retailer 9
-
£47,360 GBP
View
B+
Retailer 10
-
£49,068 GBP
View
B
Retailer 11
-
£49,253 GBP
View
B
Retailer 12
-
£49,847 GBP
View
Most Expensive
B
MOH London
F8CAE04A5 · Nov 7
£64,375 GBP
View
12 more retailers have this diamond
Prices start from £39,214 GBPSave up to £25,162 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+
3.51ct Cushion
£39,214 GBP