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Cushion|Natural|GIA

4.01ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 6542523950

Certificate GIA 6542523950

Diamond specifications and retailer prices

From £18,506 GBP
As of November 6, 2026
Save £11,619 GBP (39%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £30,125 GBP 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6542523950. Listed at 8 retailers as of November 4, 2026, with prices from £18,506 to £30,125, a £11,619 spread on the same certified stone. MOH London lists it at £30,125. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542523950
Dimensions9.30 × 8.38 × 5.78 mm
L/W Ratio1.11
Top View
9.30 mm8.38 mm4.01 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542523950
Side View
Table 63.0%CrownGirdle: STK-VTHPavilionCulet: NoneDepth 69.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £30,125 GBP|Low: £15,896 GBP|High: £30,368 GBP|Avg: £21,322 GBP|+26.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 8£18,506 GBP
Retailer 4£19,661 GBP
Retailer 2£19,666 GBP
Retailer 9£19,978 GBP
Retailer 5£20,447 GBP
Retailer 6£21,234 GBP
Retailer 3£22,814 GBP
Retailer 7£23,010 GBP
MOH London£30,125 GBP

30 data points across 9 retailers

8 retailers£18,506 GBP to £30,125 GBP

A
Cheapest Retailer
-
£18,506 GBP
A
Retailer 2
-
£19,661 GBP
View
A
Retailer 3
-
£19,666 GBP
View
A
Retailer 4
-
£20,447 GBP
View
A
Retailer 5
-
£21,234 GBP
View
B+
Retailer 6
-
£22,814 GBP
View
A
Retailer 7
-
£23,010 GBP
View
Most Expensive
B+
MOH London
BD9389436 · Nov 4
£30,125 GBP
View
7 more retailers have this diamond
Prices start from £18,506 GBPSave up to £11,619 GBP

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
£18,506 GBP