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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 $47,248 AUD
As of November 6, 2026
Save $35,675 AUD (43%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $82,923 AUD 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 $47,248 to $82,923, a $35,675 spread on the same certified stone. MOH London lists it at $82,923. 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 (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: $82,923 AUD|Low: $49,216 AUD|High: $83,590 AUD|Avg: $59,239 AUD|-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$49,216 AUD
Retailer 4$51,544 AUD
Retailer 8$51,667 AUD
Retailer 2$53,113 AUD
Retailer 9$53,239 AUD
Retailer 5$58,401 AUD
Retailer 6$62,306 AUD
Retailer 7$66,253 AUD
MOH London$82,923 AUD

23 data points across 9 retailers

21 retailers$47,248 AUD to $82,923 AUD

A
Cheapest Retailer
-
$47,248 AUD
A
Retailer 2
-
$48,471 AUD
View
A
Retailer 3
-
$49,216 AUD
View
A
Retailer 4
-
$49,863 AUD
View
A
Retailer 5
-
$51,544 AUD
View
A
Retailer 6
-
$51,667 AUD
View
B+
Retailer 7
-
$52,834 AUD
View
A
Retailer 8
-
$53,113 AUD
View
Retailer 9
-
$53,239 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$53,570 AUD
View
B+
Retailer 11
-
$54,719 AUD
View
B+
Retailer 12
-
$55,879 AUD
View
B+
Retailer 13
-
$56,929 AUD
View
B+
Retailer 14
-
$57,577 AUD
View
B+
Retailer 15
-
$58,401 AUD
View
B+
Retailer 16
-
$59,792 AUD
View
Retailer 17
-
$59,880 AUD
View
Price last confirmed 15 days ago
B+
Retailer 18
-
$62,306 AUD
View
B+
Retailer 19
-
$62,841 AUD
View
B
Retailer 20
-
$66,253 AUD
View
Most Expensive
B
MOH London
86EA74769 · Nov 4
$82,923 AUD
£44,863 GBP
View
20 more retailers have this diamond
Prices start from $47,248 AUDSave up to $35,675 AUD

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
$47,248 AUD