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Cushion|Natural|GIA

4.06ct K SI1 Cushion Natural Diamond

ID • K/SI1 • GIA 6555389479

Certificate GIA 6555389479

Diamond specifications and retailer prices

From €22,194 EUR
As of November 6, 2026
Save €19,044 EUR (46%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €41,238 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 4.06ct natural cushion diamond

This 4.06ct 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 6555389479. Listed at 5 retailers as of November 4, 2026, with prices from €22,194 to €41,238, a €19,044 spread on the same certified stone. MOH London lists it at €41,238. 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

4.06
Carat
K
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555389479
Dimensions10.83 × 8.28 × 5.62 mm
L/W Ratio1.31
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
10.83 mm8.28 mm4.06 ctK / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555389479
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NDepth 67.8%

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: €41,238 EUR|Low: €22,194 EUR|High: €43,494 EUR|Avg: €29,775 EUR|-5.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 2€22,194 EUR
Retailer 6€24,958 EUR
Retailer 4€26,286 EUR
Retailer 5€27,732 EUR
Retailer 3€32,148 EUR
MOH London€41,238 EUR

20 data points across 6 retailers

5 retailers€22,194 EUR to €41,238 EUR

A
Cheapest Retailer
-
€22,194 EUR
A
Retailer 2
-
€26,286 EUR
View
A
Retailer 3
-
€27,732 EUR
View
A
Retailer 4
-
€32,148 EUR
View
Most Expensive
B
MOH London
BA8C7A854 · Nov 4
€41,238 EUR
£36,254 GBP
View
4 more retailers have this diamond
Prices start from €22,194 EURSave up to €19,044 EUR

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
4.06ct Cushion
€22,194 EUR