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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 $21,258 AUD
As of November 6, 2026
Save $5,763 AUD (21%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $43,219 AUD 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

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: $43,219 AUD|Low: $17,561 AUD|High: $43,219 AUD|Avg: $28,214 AUD
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$17,561 AUD
Retailer 7$21,258 AUD
Retailer 6$21,820 AUD
Retailer 3$24,163 AUD
Retailer 2$27,020 AUD
Retailer 10$28,739 AUD
Retailer 9$29,909 AUD
Retailer 4$33,100 AUD
Retailer 8$34,694 AUD
NZ Jewellers$43,219 AUD

14 data points across 10 retailers

4 retailers$21,258 AUD to $27,020 AUD

A
Cheapest Retailer
-
$21,258 AUD
A
Retailer 2
-
$24,163 AUD
View
A
Retailer 3
-
$27,020 AUD
View
Most Expensive
NZ Jewellers
67fdd221-f426-48c7-a710-98fdbfbb1d8e · Sep 15
$43,219 AUD
$30,255 USD
View
Price last confirmed 52 days ago
3 more retailers have this diamond
Prices start from $21,258 AUDSave up to $5,763 AUD

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
$21,258 AUD