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4.56ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 588362937

Shape and cutting style on the report: Round brilliant

Certificate IGI 588362937

Diamond specifications and retailer prices

From $36,355 AUD
As of November 4, 2026
Save $22,445 AUD (38%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $58,800 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 4.56ct natural round diamond

This 4.56ct 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 588362937. Listed at 16 retailers as of November 4, 2026, with prices from $36,355 to $58,800, a $22,445 spread on the same certified stone. MOH London lists it at $58,800. 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

4.56
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.4°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 588362937
Dimensions10.44 × 10.36 × 6.61 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
10.44 mm10.36 mm4.56 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 588362937
Side View
Table 56.0%Crown 36.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.4%

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 4
Current: $58,800 AUD|Low: $36,355 AUD|High: $59,669 AUD|Avg: $43,886 AUD|-1.2%
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 7$36,355 AUD
Retailer 6$38,327 AUD
Retailer 5$38,999 AUD
Retailer 11$39,324 AUD
Retailer 9$41,669 AUD
Retailer 8$43,754 AUD
Retailer 10$45,142 AUD
Retailer 4$45,449 AUD
Retailer 3$46,879 AUD
Retailer 2$46,979 AUD
MOH London$58,800 AUD

36 data points across 11 retailers

16 retailers$36,355 AUD to $58,800 AUD

A
Cheapest Retailer
-
$36,355 AUD
A
Retailer 2
-
$37,488 AUD
View
A
Retailer 3
-
$37,938 AUD
View
A
Retailer 4
-
$38,327 AUD
View
A
Retailer 5
-
$38,999 AUD
View
A
Retailer 6
-
$39,324 AUD
View
A
Retailer 7
-
$40,512 AUD
View
Retailer 8
-
$41,669 AUD
View
Price last confirmed 21 days ago
B+
Retailer 9
-
$43,728 AUD
View
B+
Retailer 10
-
$43,754 AUD
View
B+
Retailer 11
-
$45,142 AUD
View
A
Retailer 12
-
$45,449 AUD
View
B+
Retailer 13
-
$46,372 AUD
View
B+
Retailer 14
-
$46,879 AUD
View
A
Retailer 15
-
$46,979 AUD
View
Most Expensive
B+
MOH London
D94B529EA · Nov 4
$58,800 AUD
£32,411 GBP
View
15 more retailers have this diamond
Prices start from $36,355 AUDSave up to $22,445 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
4.56ct Round
$36,355 AUD