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3.71ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 526255086

Shape and cutting style on the report: Round brilliant

Certificate IGI 526255086

Diamond specifications and retailer prices

From £11,895 GBP
As of November 1, 2026
Save £6,806 GBP (36%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £18,701 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.71ct natural round diamond

This 3.71ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 526255086. Listed at 13 retailers as of November 1, 2026, with prices from £11,895 to £18,701, a £6,806 spread on the same certified stone. MOH London lists it at £18,701. 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

3.71
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabIGI
CertificateIGI 526255086
Dimensions9.88 × 9.84 × 6.13 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
9.88 mm9.84 mm3.71 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 526255086
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £18,701 GBP|Low: £11,895 GBP|High: £20,019 GBP|Avg: £14,600 GBP|-5.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3£11,895 GBP
Retailer 6£12,083 GBP
Retailer 5£12,184 GBP
Retailer 4£14,358 GBP
Retailer 2£14,454 GBP
Retailer 7£14,729 GBP
Retailer 8£14,910 GBP
Retailer 9£15,932 GBP
MOH London£18,701 GBP

29 data points across 9 retailers

13 retailers£11,895 GBP to £18,701 GBP

A
Cheapest Retailer
-
£11,895 GBP
A
Retailer 2
-
£12,083 GBP
View
A
Retailer 3
-
£12,184 GBP
View
Retailer 4
-
£13,253 GBP
View
Price last confirmed 21 days ago
Retailer 5
-
£14,136 GBP
View
Price last confirmed 22 days ago
Retailer 6
-
£14,358 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
£14,454 GBP
View
B+
Retailer 8
-
£14,729 GBP
View
Retailer 9
-
£14,910 GBP
View
Price last confirmed 16 days ago
Retailer 10
-
£15,146 GBP
View
Price last confirmed 45 days ago
Retailer 11
-
£15,728 GBP
View
Price last confirmed 45 days ago
Retailer 12
-
£17,943 GBP
View
Price last confirmed 48 days ago
Most Expensive
B+
MOH London
AA9F853A7 · Nov 4
£18,701 GBP
View
12 more retailers have this diamond
Prices start from £11,895 GBPSave up to £6,806 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
3.71ct Round
£11,895 GBP