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4.02ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 843671487

Shape and cutting style on the report: Round brilliant

Certificate IGI 843671487

Diamond specifications and retailer prices

From €17,368 EUR
As of November 5, 2026
Save €12,399 EUR (42%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €29,768 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 4.02ct natural round diamond

This 4.02ct 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 843671487. Listed at 15 retailers as of November 4, 2026, with prices from €17,368 to €29,768, a €12,399 spread on the same certified stone. MOH London lists it at €29,768. 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

4.02
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 843671487
Dimensions10.08 × 10.14 × 6.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
10.08 mm10.14 mm4.02 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 843671487
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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 5
Current: €29,768 EUR|Low: €17,368 EUR|High: €30,167 EUR|Avg: €22,367 EUR|-1.3%
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
November 6, 2026
Retailer 9€17,368 EUR
Retailer 6€19,393 EUR
Retailer 8€19,533 EUR
Retailer 2€19,759 EUR
Retailer 5€20,554 EUR
Retailer 13€21,096 EUR
Retailer 12€22,151 EUR
Retailer 11€22,854 EUR
Retailer 10€23,038 EUR
Retailer 4€23,465 EUR
Retailer 3€23,732 EUR
Retailer 7€23,783 EUR
Retailer 14€27,075 EUR
MOH London€29,768 EUR

26 data points across 14 retailers

15 retailers€17,368 EUR to €29,768 EUR

A
Cheapest Retailer
-
€17,368 EUR
A
Retailer 2
-
€19,393 EUR
View
A
Retailer 3
-
€19,533 EUR
View
A
Retailer 4
-
€19,759 EUR
View
A
Retailer 5
-
€20,554 EUR
View
A
Retailer 6
-
€20,597 EUR
View
Retailer 7
-
€21,096 EUR
View
Price last confirmed 8 days ago
A
Retailer 8
-
€22,151 EUR
View
A
Retailer 9
-
€22,854 EUR
View
A
Retailer 10
-
€23,038 EUR
View
B+
Retailer 11
-
€23,465 EUR
View
B+
Retailer 12
-
€23,732 EUR
View
A
Retailer 13
-
€23,783 EUR
View
B+
Retailer 14
-
€27,075 EUR
View
Most Expensive
B+
MOH London
5549054B1 · Nov 4
€29,768 EUR
£26,308 GBP
View
14 more retailers have this diamond
Prices start from €17,368 EURSave up to €12,399 EUR

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
4.02ct Round
€17,368 EUR