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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 $25,450 USD
As of November 4, 2026
Save $15,712 USD (38%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $41,162 USD 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 $25,450 to $41,162, a $15,712 spread on the same certified stone. MOH London lists it at $41,162. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $41,162 USD|Low: $25,450 USD|High: $41,770 USD|Avg: $30,722 USD|-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$25,450 USD
Retailer 6$26,830 USD
Retailer 5$27,301 USD
Retailer 11$27,528 USD
Retailer 9$29,170 USD
Retailer 8$30,629 USD
Retailer 10$31,601 USD
Retailer 4$31,816 USD
Retailer 3$32,817 USD
Retailer 2$32,887 USD
MOH London$41,162 USD

36 data points across 11 retailers

16 retailers$25,450 USD to $41,162 USD

A
Cheapest Retailer
-
$25,450 USD
A
Retailer 2
-
$26,243 USD
View
A
Retailer 3
-
$26,558 USD
View
A
Retailer 4
-
$26,830 USD
View
A
Retailer 5
-
$27,301 USD
View
A
Retailer 6
-
$27,528 USD
View
A
Retailer 7
-
$28,360 USD
View
Retailer 8
-
$29,170 USD
View
Price last confirmed 21 days ago
B+
Retailer 9
-
$30,611 USD
View
B+
Retailer 10
-
$30,629 USD
View
B+
Retailer 11
-
$31,601 USD
View
A
Retailer 12
-
$31,816 USD
View
B+
Retailer 13
-
$32,462 USD
View
B+
Retailer 14
-
$32,817 USD
View
A
Retailer 15
-
$32,887 USD
View
Most Expensive
B+
MOH London
D94B529EA · Nov 4
$41,162 USD
£32,411 GBP
View
15 more retailers have this diamond
Prices start from $25,450 USDSave up to $15,712 USD

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
$25,450 USD