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Round|Natural|IGI

4.01ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 603372310

Shape and cutting style on the report: Round brilliant

Certificate IGI 603372310

Diamond specifications and retailer prices

From $32,574 AUD
As of November 4, 2026
Save $17,784 AUD (35%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $50,358 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 4.01ct natural round diamond

This 4.01ct 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 603372310. Listed at 13 retailers as of November 4, 2026, with prices from $32,574 to $50,358, a $17,784 spread on the same certified stone. MOH London lists it at $50,358. 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

4.01
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 603372310
Dimensions10.35 × 10.43 × 6.10 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
10.35 mm10.43 mm4.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 603372310
Side View
Table 60.0%Crown 32.8°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 58.7%

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: $50,358 AUD|Low: $32,574 AUD|High: $51,360 AUD|Avg: $38,664 AUD|-1.9%
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
November 6, 2026
Retailer 4$32,574 AUD
Retailer 7$32,778 AUD
Retailer 2$33,425 AUD
Retailer 10$34,748 AUD
Retailer 12$35,687 AUD
Retailer 5$37,472 AUD
Retailer 9$38,661 AUD
Retailer 8$39,097 AUD
Retailer 11$39,701 AUD
Retailer 3$40,148 AUD
Retailer 6$40,234 AUD
Retailer 13$45,802 AUD
MOH London$50,358 AUD

28 data points across 13 retailers

13 retailers$32,574 AUD to $50,358 AUD

A
Cheapest Retailer
-
$32,574 AUD
A
Retailer 2
-
$32,778 AUD
View
A
Retailer 3
-
$33,425 AUD
View
A
Retailer 4
-
$34,748 AUD
View
Retailer 5
-
$35,687 AUD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$37,472 AUD
View
A
Retailer 7
-
$38,661 AUD
View
A
Retailer 8
-
$39,097 AUD
View
A
Retailer 9
-
$39,701 AUD
View
A
Retailer 10
-
$40,148 AUD
View
A
Retailer 11
-
$40,234 AUD
View
B+
Retailer 12
-
$45,802 AUD
View
Most Expensive
B+
MOH London
1158DA5C2 · Nov 4
$50,358 AUD
£27,758 GBP
View
12 more retailers have this diamond
Prices start from $32,574 AUDSave up to $17,784 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
4.01ct Round
$32,574 AUD