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Cushion|Natural|GIA

4.03ct K SI1 Cushion Natural Diamond

EX • K/SI1 • GIA 6561683815

Certificate GIA 6561683815

Diamond specifications and retailer prices

From £22,506 GBP
As of November 6, 2026
Save £12,291 GBP (35%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £34,797 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 4.03ct natural cushion diamond

This 4.03ct 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 6561683815. Listed at 6 retailers as of November 4, 2026, with prices from £22,506 to £34,797, a £12,291 spread on the same certified stone. MOH London lists it at £34,797. 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

4.03
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561683815
Dimensions10.61 × 8.10 × 5.46 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
10.61 mm8.10 mm4.03 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561683815
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.4%

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: £34,797 GBP|Low: £22,505 GBP|High: £34,797 GBP|Avg: £26,527 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 6£22,506 GBP
Retailer 2£24,457 GBP
Retailer 3£24,507 GBP
Retailer 4£26,954 GBP
Retailer 5£27,802 GBP
MOH London£34,797 GBP

5 data points across 6 retailers

6 retailers£22,506 GBP to £34,797 GBP

A
Cheapest Retailer
-
£22,506 GBP
A
Retailer 2
-
£24,457 GBP
View
A
Retailer 3
-
£24,507 GBP
View
B+
Retailer 4
-
£26,954 GBP
View
B+
Retailer 5
-
£27,802 GBP
View
Most Expensive
B
MOH London
84DFC2068 · Nov 4
£34,797 GBP
View
5 more retailers have this diamond
Prices start from £22,506 GBPSave up to £12,291 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
4.03ct Cushion
£22,506 GBP