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5.09ct G SI2 Round Natural Diamond

EX • G/SI2 • IGI 670409860

Shape and cutting style on the report: Round brilliant

Certificate IGI 670409860

Diamond specifications and retailer prices

From £66,793 GBP
As of November 1, 2026
1 retailer carries this diamond
Only listing: £66,793 GBP at MOH London
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at MOH London

About this 5.09ct natural round diamond

This 5.09ct natural round sits in the over five carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 670409860. Listed at a single retailer as of November 1, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

5.09
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.4°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 670409860
Dimensions10.84 × 10.91 × 6.83 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
10.84 mm10.91 mm5.09 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 670409860
Side View
Table 59.0%Crown 36.4°Girdle: MED-THKPavilion 41°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: £66,793 GBP|Low: £37,817 GBP|High: £67,598 GBP|Avg: £52,512 GBP|-0.1%
MOH London
Retailer 2
November 1, 2026
Retailer 2£37,817 GBP
MOH London£66,793 GBP

11 data points across 2 retailers

1 retailer

B+
MOH London
ADCE9F134 · Nov 1
£66,793 GBP
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B+
5.09ct Round
£66,793 GBP