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Round|Natural|GIA

4.01ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6561077969

Certificate GIA 6561077969

Diamond specifications and retailer prices

From $42,488 SGD
As of November 6, 2026
Save $24,384 SGD (36%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $66,872 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 6561077969. Listed at 11 retailers as of November 4, 2026, with prices from $42,488 to $66,872, a $24,384 spread on the same certified stone. MOH London lists it at $66,872. 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 angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6561077969
Dimensions10.02 × 10.06 × 6.34 mm
L/W Ratio1.00
Star length55%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Indented Natural, Needle, Knot
Top View
10.02 mm10.06 mm4.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561077969
Side View
Table 57.0%Crown 35.5°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 63.2%

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 6
Current: $66,872 SGD|Low: $42,488 SGD|High: $67,860 SGD|Avg: $50,702 SGD|-0.3%
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 5$42,488 SGD
Retailer 2$44,386 SGD
Retailer 9$44,722 SGD
Retailer 6$45,983 SGD
Retailer 3$47,390 SGD
Retailer 8$48,002 SGD
Retailer 11$49,365 SGD
Retailer 10$51,340 SGD
Retailer 7$53,315 SGD
Retailer 4$53,429 SGD
MOH London$66,872 SGD

29 data points across 11 retailers

11 retailers$42,488 SGD to $66,872 SGD

A
Cheapest Retailer
-
$42,488 SGD
A
Retailer 2
-
$44,386 SGD
View
B+
Retailer 3
-
$44,722 SGD
View
A
Retailer 4
-
$45,983 SGD
View
Retailer 5
-
$47,390 SGD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$48,002 SGD
View
B+
Retailer 7
-
$49,365 SGD
View
B+
Retailer 8
-
$51,340 SGD
View
B+
Retailer 9
-
$53,315 SGD
View
B+
Retailer 10
-
$53,429 SGD
View
Most Expensive
B
MOH London
EB686C502 · Nov 4
$66,872 SGD
£41,224 GBP
View
10 more retailers have this diamond
Prices start from $42,488 SGDSave up to $24,384 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.

A
4.01ct Round
$42,488 SGD