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5.17ct E SI2 Round Natural Diamond

EX • E/SI2 • IGI 634413594

Shape and cutting style on the report: Round brilliant

Certificate IGI 634413594

Diamond specifications and retailer prices

From £35,257 GBP
$47,241 USD
As of October 30, 2026
Save £19,837 GBP (36%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £55,094 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 5.17ct natural round diamond

This 5.17ct natural round sits in the over five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 634413594. Listed at 4 retailers as of October 26, 2026, with prices from £35,257 to £55,094, a £19,837 spread on the same certified stone. MOH London lists it at £55,094. 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

5.17
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.1°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 634413594
Dimensions11.04 × 10.95 × 6.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
11.04 mm10.95 mm5.17 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 634413594
Side View
Table 54.0%Crown 36.1°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £55,094 GBP|Low: £33,682 GBP|High: £55,684 GBP|Avg: £41,331 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 3£33,682 GBP
Retailer 4£35,257 GBP
Retailer 2£41,541 GBP
MOH London£55,094 GBP

23 data points across 4 retailers

4 retailers£35,257 GBP to £55,094 GBP

Retailer 1
-
£33,682 GBP
$45,130 USD
Price last confirmed 13 days ago
A
Retailer 2
-
£35,257 GBP
$47,241 USD
View
A
Retailer 3
-
£41,541 GBP
€53,010 EUR
View
Most Expensive
A
MOH London
4F9120671 · Oct 26
£55,094 GBP
View
3 more retailers have this diamond
Prices start from £35,257 GBPSave up to £19,837 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
5.17ct Round
£35,257 GBP