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Cushion|Natural|GIA

4.01ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 6565705826

Certificate GIA 6565705826

Diamond specifications and retailer prices

From £20,035 GBP
As of November 6, 2026
Save £5,579 GBP (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £25,614 GBP at Moon Ocean · As of November 6, 2026
View at Moon Ocean

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 6565705826. Listed at 4 retailers as of November 6, 2026, with prices from £20,035 to £25,614, a £5,579 spread on the same certified stone. Moon Ocean lists it at £25,614. 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 6565705826
Dimensions11.48 × 8.19 × 5.39 mm
L/W Ratio1.40
Girdle conditionThin to Very Thick
Key to symbols
Feather, Twinning Wisp, Crystal, Cloud, Needle, Indented Natural
Top View
11.48 mm8.19 mm4.01 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6565705826
Side View
Table 64.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 65.8%

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: £25,614 GBP|Low: £20,035 GBP|High: £25,614 GBP|Avg: £22,449 GBP
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
November 7, 2026
Retailer 4£20,035 GBP
Retailer 3£20,056 GBP
Retailer 2£25,249 GBP
Moon Ocean£25,614 GBP

3 data points across 4 retailers

4 retailers£20,035 GBP to £25,614 GBP

A
Cheapest Retailer
-
£20,035 GBP
A
Retailer 2
-
£20,056 GBP
View
B+
Retailer 3
-
£25,249 GBP
View
Most Expensive
B+
Moon Ocean
NVN-A189499A3-826 · Nov 6
£25,614 GBP
View
3 more retailers have this diamond
Prices start from £20,035 GBPSave up to £5,579 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
£20,035 GBP