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Cushion|Natural|GIA

3.51ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 6422655354

Certificate GIA 6422655354

Diamond specifications and retailer prices

From £32,931 GBP
As of November 7, 2026
Save £18,207 GBP (36%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £51,138 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 6422655354. Listed at 7 retailers as of November 7, 2026, with prices from £32,931 to £51,138, a £18,207 spread on the same certified stone. MOH London lists it at £51,138. 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
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6422655354
Dimensions8.31 × 8.14 × 6.25 mm
L/W Ratio1.02
Top View
8.31 mm8.14 mm3.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6422655354
Side View
Table 56.0%CrownGirdle: ThickPavilionCulet: NoneDepth 76.8%

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 7
Current: £51,138 GBP|Low: £30,388 GBP|High: £52,033 GBP|Avg: £38,624 GBP|+1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 5£31,502 GBP
Retailer 6£31,530 GBP
Retailer 7£32,931 GBP
Retailer 2£35,542 GBP
Retailer 3£39,717 GBP
Retailer 4£42,381 GBP
MOH London£51,138 GBP

45 data points across 7 retailers

7 retailers£32,931 GBP to £51,138 GBP

Retailer 1
-
£31,502 GBP
Price last confirmed 10 days ago
Retailer 2
-
£31,530 GBP
View
Price last confirmed 34 days ago
A
Retailer 3
-
£32,931 GBP
View
A
Retailer 4
-
£35,542 GBP
View
B+
Retailer 5
-
£39,717 GBP
View
B+
Retailer 6
-
£42,381 GBP
View
Most Expensive
B
MOH London
5DD8ED5D4 · Nov 7
£51,138 GBP
View
6 more retailers have this diamond
Prices start from £32,931 GBPSave up to £18,207 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
3.51ct Cushion
£32,931 GBP