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Round|Natural|GIA

4.01ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1543001587

Certificate GIA 1543001587

Diamond specifications and retailer prices

From $44,656 SGD
As of November 6, 2026
Save $27,889 SGD (38%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $72,545 SGD 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 $44,656 to $72,545, a $27,889 spread on the same certified stone. MOH London lists it at $72,545. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $72,545 SGD|Low: $43,131 SGD|High: $73,129 SGD|Avg: $50,772 SGD|+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$43,663 SGD
Retailer 10$44,656 SGD
Retailer 2$46,288 SGD
Retailer 3$46,602 SGD
Retailer 7$46,683 SGD
Retailer 12$47,390 SGD
Retailer 9$49,340 SGD
Retailer 8$51,238 SGD
Retailer 11$52,801 SGD
Retailer 5$54,723 SGD
Retailer 6$55,526 SGD
MOH London$72,545 SGD

32 data points across 12 retailers

13 retailers$44,656 SGD to $72,545 SGD

B+
Cheapest Retailer
-
$44,656 SGD
Retailer 2
-
$44,722 SGD
View
Price last confirmed 39 days ago
B+
Retailer 3
-
$46,288 SGD
View
B+
Retailer 4
-
$46,683 SGD
View
B+
Retailer 5
-
$49,340 SGD
View
Retailer 6
-
$49,365 SGD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$51,238 SGD
View
Retailer 8
-
$51,340 SGD
View
Price last confirmed 36 days ago
Retailer 9
-
$52,801 SGD
View
Price last confirmed 36 days ago
Retailer 10
-
$53,315 SGD
View
Price last confirmed 38 days ago
B
Retailer 11
-
$54,723 SGD
View
B
Retailer 12
-
$55,526 SGD
View
Most Expensive
B
MOH London
D8D00991E · Nov 4
$72,545 SGD
£44,721 GBP
View
12 more retailers have this diamond
Prices start from $44,656 SGDSave up to $27,889 SGD

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
$44,656 SGD