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Round|Natural|IGI

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 $19,996 AUD
As of November 6, 2026
Save $10,903 AUD (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $30,899 AUD 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 $19,996 to $30,899, a $10,903 spread on the same certified stone. MOH London lists it at $30,899. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $30,899 AUD|Low: $19,803 AUD|High: $31,912 AUD|Avg: $24,388 AUD|+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$19,996 AUD
Retailer 7$20,132 AUD
Retailer 9$21,897 AUD
Retailer 2$22,702 AUD
Retailer 10$23,357 AUD
Retailer 11$23,723 AUD
Retailer 3$24,323 AUD
Retailer 5$24,634 AUD
Retailer 4$24,832 AUD
Retailer 8$28,104 AUD
MOH London$30,899 AUD

43 data points across 11 retailers

11 retailers$19,996 AUD to $30,899 AUD

A
Cheapest Retailer
-
$19,996 AUD
A
Retailer 2
-
$20,132 AUD
View
Retailer 3
-
$21,897 AUD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$22,702 AUD
View
A
Retailer 5
-
$23,357 AUD
View
A
Retailer 6
-
$23,723 AUD
View
B+
Retailer 7
-
$24,323 AUD
View
A
Retailer 8
-
$24,634 AUD
View
A
Retailer 9
-
$24,832 AUD
View
B+
Retailer 10
-
$28,104 AUD
View
Most Expensive
B+
MOH London
4EA86EAC1 · Nov 4
$30,899 AUD
£17,032 GBP
View
10 more retailers have this diamond
Prices start from $19,996 AUDSave up to $10,903 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
$19,996 AUD