Round|Natural|GIA

4.01ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1543001587

Certificate GIA 1543001587

Diamond specifications and retailer prices

From €31,149 EUR
As of November 6, 2026
Save €19,454 EUR (38%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €50,602 EUR 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 GIA 1543001587. Listed at 13 retailers as of November 4, 2026, with prices from €31,149 to €50,602, a €19,454 spread on the same certified stone. MOH London lists it at €50,602. 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 angle33.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1543001587
Dimensions10.17 × 10.10 × 6.26 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather
Top View
10.17 mm10.10 mm4.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1543001587
Side View
Table 62.0%Crown 33.5°Girdle: ThickPavilion 41.8°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €50,602 EUR|Low: €30,085 EUR|High: €51,009 EUR|Avg: €35,415 EUR|+8.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4€30,456 EUR
Retailer 10€31,149 EUR
Retailer 2€32,287 EUR
Retailer 3€32,506 EUR
Retailer 7€32,562 EUR
Retailer 12€33,056 EUR
Retailer 9€34,416 EUR
Retailer 8€35,740 EUR
Retailer 11€36,830 EUR
Retailer 5€38,171 EUR
Retailer 6€38,730 EUR
MOH London€50,602 EUR

32 data points across 12 retailers

13 retailers€31,149 EUR to €50,602 EUR

B+
Cheapest Retailer
-
€31,149 EUR
Retailer 2
-
€31,195 EUR
View
Price last confirmed 39 days ago
B+
Retailer 3
-
€32,287 EUR
View
B+
Retailer 4
-
€32,562 EUR
View
B+
Retailer 5
-
€34,416 EUR
View
Retailer 6
-
€34,433 EUR
View
Price last confirmed 38 days ago
B+
Retailer 7
-
€35,740 EUR
View
Retailer 8
-
€35,811 EUR
View
Price last confirmed 36 days ago
Retailer 9
-
€36,830 EUR
View
Price last confirmed 36 days ago
Retailer 10
-
€37,188 EUR
View
Price last confirmed 38 days ago
B
Retailer 11
-
€38,171 EUR
View
B
Retailer 12
-
€38,730 EUR
View
Most Expensive
B
MOH London
D8D00991E · Nov 4
€50,602 EUR
£44,721 GBP
View
12 more retailers have this diamond
Prices start from €31,149 EURSave up to €19,454 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.

B+
4.01ct Round
€31,149 EUR