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Cushion|Natural|GIA

4.01ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6551217341

Certificate GIA 6551217341

Diamond specifications and retailer prices

From $45,664 CAD
As of November 6, 2026
Save $34,479 CAD (43%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $80,142 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 4.01ct natural cushion diamond

This 4.01ct natural cushion sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551217341. Listed at 21 retailers as of November 4, 2026, with prices from $45,664 to $80,142, a $34,479 spread on the same certified stone. MOH London lists it at $80,142. 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551217341
Dimensions10.87 × 8.38 × 5.76 mm
L/W Ratio1.30
Key to symbols
Crystal, Feather, Needle
Top View
10.87 mm8.38 mm4.01 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551217341
Side View
Table 66.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.7%

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: $80,142 CAD|Low: $47,566 CAD|High: $80,787 CAD|Avg: $57,253 CAD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 3$47,566 CAD
Retailer 4$49,816 CAD
Retailer 8$49,934 CAD
Retailer 2$51,332 CAD
Retailer 9$51,453 CAD
Retailer 5$56,443 CAD
Retailer 6$60,217 CAD
Retailer 7$64,031 CAD
MOH London$80,142 CAD

23 data points across 9 retailers

21 retailers$45,664 CAD to $80,142 CAD

A
Cheapest Retailer
-
$45,664 CAD
A
Retailer 2
-
$46,845 CAD
View
A
Retailer 3
-
$47,566 CAD
View
A
Retailer 4
-
$48,192 CAD
View
A
Retailer 5
-
$49,816 CAD
View
A
Retailer 6
-
$49,934 CAD
View
B+
Retailer 7
-
$51,062 CAD
View
A
Retailer 8
-
$51,332 CAD
View
Retailer 9
-
$51,453 CAD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$51,774 CAD
View
B+
Retailer 11
-
$52,884 CAD
View
B+
Retailer 12
-
$54,005 CAD
View
B+
Retailer 13
-
$55,021 CAD
View
B+
Retailer 14
-
$55,647 CAD
View
B+
Retailer 15
-
$56,443 CAD
View
B+
Retailer 16
-
$57,787 CAD
View
Retailer 17
-
$57,872 CAD
View
Price last confirmed 15 days ago
B+
Retailer 18
-
$60,217 CAD
View
B+
Retailer 19
-
$60,734 CAD
View
B
Retailer 20
-
$64,031 CAD
View
Most Expensive
B
MOH London
86EA74769 · Nov 4
$80,142 CAD
£44,863 GBP
View
20 more retailers have this diamond
Prices start from $45,664 CADSave up to $34,479 CAD

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 Cushion
$45,664 CAD