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Round|Natural|IGI

3.03ct K SI2 Round Natural Diamond

EX • K/SI2 • IGI 604389110

Shape and cutting style on the report: Round brilliant

Certificate IGI 604389110

Diamond specifications and retailer prices

From £11,056 GBP
As of November 6, 2026
Save £2,997 GBP (21%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £22,479 GBP at NZ Jewellers · As of September 15, 2026
View at NZ Jewellers

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 604389110. Listed at 4 retailers as of November 4, 2026, with a 27% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceFaint
Crown angle35.6°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 604389110
Dimensions9.15 × 9.22 × 5.74 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
9.15 mm9.22 mm3.03 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 604389110
Side View
Table 59.0%Crown 35.6°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £22,479 GBP|Low: £9,134 GBP|High: £22,479 GBP|Avg: £14,674 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 4, 2026
Retailer 5£9,134 GBP
Retailer 7£11,056 GBP
Retailer 6£11,349 GBP
Retailer 3£12,568 GBP
Retailer 2£14,054 GBP
Retailer 10£14,947 GBP
Retailer 9£15,556 GBP
Retailer 4£17,216 GBP
Retailer 8£18,045 GBP
NZ Jewellers£22,479 GBP

14 data points across 10 retailers

4 retailers£11,056 GBP to £14,054 GBP

A
Cheapest Retailer
-
£11,056 GBP
A
Retailer 2
-
£12,568 GBP
View
A
Retailer 3
-
£14,054 GBP
View
Most Expensive
NZ Jewellers
67fdd221-f426-48c7-a710-98fdbfbb1d8e · Sep 15
£22,479 GBP
$30,255 USD
View
Price last confirmed 52 days ago
3 more retailers have this diamond
Prices start from £11,056 GBPSave up to £2,997 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
£11,056 GBP