CaratHunter
Plans
Round|Natural|IGI

4.03ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 613368674

Shape and cutting style on the report: Round brilliant

Certificate IGI 613368674

Diamond specifications and retailer prices

From $24,156 AUD
As of November 4, 2026
Save $13,626 AUD (36%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $37,782 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 4.03ct natural round diamond

This 4.03ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 613368674. Listed at 15 retailers as of November 4, 2026, with prices from $24,156 to $37,782, a $13,626 spread on the same certified stone. MOH London lists it at $37,782. 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

4.03
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 613368674
Dimensions10.15 × 10.12 × 6.27 mm
L/W Ratio1.00
Culet sizePointed
Top View
10.15 mm10.12 mm4.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 613368674
Side View
Table 62.0%Crown 34.8°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.9%

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 4
Current: $37,782 AUD|Low: $24,156 AUD|High: $39,800 AUD|Avg: $29,666 AUD|-5.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 11$24,156 AUD
Retailer 7$24,329 AUD
Retailer 4$24,616 AUD
Retailer 2$25,077 AUD
Retailer 9$25,174 AUD
Retailer 12$26,163 AUD
Retailer 14$26,774 AUD
Retailer 5$28,114 AUD
Retailer 6$29,006 AUD
Retailer 10$29,203 AUD
Retailer 13$29,763 AUD
Retailer 3$30,121 AUD
Retailer 8$30,186 AUD
Retailer 15$34,364 AUD
MOH London$37,782 AUD

36 data points across 15 retailers

15 retailers$24,156 AUD to $37,782 AUD

A
Cheapest Retailer
-
$24,156 AUD
A
Retailer 2
-
$24,329 AUD
View
A
Retailer 3
-
$24,616 AUD
View
A
Retailer 4
-
$25,077 AUD
View
A
Retailer 5
-
$25,174 AUD
View
A
Retailer 6
-
$26,163 AUD
View
Retailer 7
-
$26,774 AUD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$28,114 AUD
View
A
Retailer 9
-
$29,006 AUD
View
A
Retailer 10
-
$29,203 AUD
View
A
Retailer 11
-
$29,763 AUD
View
A
Retailer 12
-
$30,121 AUD
View
A
Retailer 13
-
$30,186 AUD
View
A
Retailer 14
-
$34,364 AUD
View
Most Expensive
A
MOH London
9847CAC73 · Nov 4
$37,782 AUD
£20,826 GBP
View
14 more retailers have this diamond
Prices start from $24,156 AUDSave up to $13,626 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
4.03ct Round
$24,156 AUD