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3.03ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 573303507

Shape and cutting style on the report: Round brilliant

Certificate IGI 573303507

Diamond specifications and retailer prices

From £10,400 GBP
As of November 6, 2026
Save £5,671 GBP (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £16,071 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.03ct natural round diamond

This 3.03ct 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 573303507. Listed at 11 retailers as of November 4, 2026, with prices from £10,400 to £16,071, a £5,671 spread on the same certified stone. MOH London lists it at £16,071. 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

3.03
Carat
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 573303507
Dimensions9.35 × 9.38 × 5.71 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
9.35 mm9.38 mm3.03 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 573303507
Side View
Table 58.0%Crown 33.8°Girdle: MediumPavilion 41.4°Culet: NoneDepth 61.1%

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 6
Current: £16,071 GBP|Low: £10,300 GBP|High: £16,598 GBP|Avg: £12,685 GBP|+4.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 6£10,400 GBP
Retailer 7£10,471 GBP
Retailer 9£11,389 GBP
Retailer 2£11,808 GBP
Retailer 10£12,149 GBP
Retailer 11£12,339 GBP
Retailer 3£12,651 GBP
Retailer 5£12,813 GBP
Retailer 4£12,915 GBP
Retailer 8£14,618 GBP
MOH London£16,071 GBP

43 data points across 11 retailers

11 retailers£10,400 GBP to £16,071 GBP

A
Cheapest Retailer
-
£10,400 GBP
A
Retailer 2
-
£10,471 GBP
View
Retailer 3
-
£11,389 GBP
View
Price last confirmed 8 days ago
A
Retailer 4
-
£11,808 GBP
View
A
Retailer 5
-
£12,149 GBP
View
A
Retailer 6
-
£12,339 GBP
View
B+
Retailer 7
-
£12,651 GBP
View
A
Retailer 8
-
£12,813 GBP
View
A
Retailer 9
-
£12,915 GBP
View
B+
Retailer 10
-
£14,618 GBP
View
Most Expensive
B+
MOH London
4EA86EAC1 · Nov 4
£16,071 GBP
View
10 more retailers have this diamond
Prices start from £10,400 GBPSave up to £5,671 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
3.03ct Round
£10,400 GBP