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Round|Natural|IGI

3.25ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 809656767

Shape and cutting style on the report: Round brilliant

Certificate IGI 809656767

Diamond specifications and retailer prices

From £13,859 GBP
$18,570 USD
As of November 1, 2026
Save £8,695 GBP (39%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £22,555 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 3.25ct natural round diamond

This 3.25ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 809656767. Listed at 14 retailers as of November 1, 2026, with prices from £13,859 to £22,555, a £8,695 spread on the same certified stone. MOH London lists it at £22,555. 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

3.25
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.4°
Pavilion angle40.3°
OriginNatural
Grading LabIGI
CertificateIGI 809656767
Dimensions9.34 × 9.41 × 5.82 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
9.34 mm9.41 mm3.25 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 809656767
Side View
Table 59.0%Crown 36.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.1%

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 1
Current: £22,555 GBP|Low: £13,859 GBP|High: £23,180 GBP|Avg: £16,640 GBP|-2.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 5£13,859 GBP
Retailer 6£13,872 GBP
Retailer 8£14,424 GBP
Retailer 3£15,326 GBP
Retailer 12£15,980 GBP
Retailer 10£16,349 GBP
Retailer 2£16,814 GBP
Retailer 11£17,209 GBP
Retailer 9£17,269 GBP
Retailer 4£17,791 GBP
Retailer 7£18,722 GBP
MOH London£22,555 GBP

22 data points across 12 retailers

14 retailers£13,859 GBP to £22,555 GBP

A
Cheapest Retailer
-
£13,859 GBP
$18,570 USD
A
Retailer 2
-
£13,872 GBP
View
A
Retailer 3
-
£14,424 GBP
$19,326 USD
View
A
Retailer 4
-
£15,326 GBP
$20,535 USD
View
A
Retailer 5
-
£15,980 GBP
$21,411 USD
View
A
Retailer 6
-
£16,349 GBP
SGD 29,603 SGD
View
A
Retailer 7
-
£16,814 GBP
€21,456 EUR
View
B+
Retailer 8
-
£17,209 GBP
$23,058 USD
View
A
Retailer 9
-
£17,269 GBP
$23,139 USD
View
A
Retailer 10
-
£17,791 GBP
$23,838 USD
View
Retailer 11
-
£17,822 GBP
$23,880 USD
View
Price last confirmed 40 days ago
A
Retailer 12
-
£18,722 GBP
ZAR 405,249 ZAR
View
Retailer 13
-
£21,114 GBP
$28,291 USD
View
Price last confirmed 42 days ago
Most Expensive
B+
MOH London
F65167123 · Nov 1
£22,555 GBP
View
13 more retailers have this diamond
Prices start from £13,859 GBPSave up to £8,695 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
3.25ct Round
£13,859 GBP