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Cushion|Natural|GIA

0.40ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6552636084

Certificate GIA 6552636084

Diamond specifications and retailer prices

From €369 EUR
$414 USD
As of October 29, 2026
Save €424 EUR (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €793 EUR at MOH London · As of November 2, 2026
View at MOH London

About this 0.4ct natural cushion diamond

This 0.4ct natural cushion sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552636084. Listed at 9 retailers as of October 29, 2026, with prices from €369 to €793, a €424 spread on the same certified stone. MOH London lists it at €793. 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

0.40
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6552636084
Dimensions5.02 × 4.03 × 2.64 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cavity
Top View
5.02 mm4.03 mm0.40 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6552636084
Side View
Table 66.0%CrownGirdle: VTN-VTKPavilionCulet: NoneDepth 65.6%

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: Oct 29
Current: €793 EUR|Low: €369 EUR|High: €823 EUR|Avg: €529 EUR|-3.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 6€369 EUR
Retailer 7€396 EUR
Retailer 8€397 EUR
Retailer 2€447 EUR
Retailer 3€470 EUR
Retailer 5€532 EUR
Retailer 9€561 EUR
Retailer 4€625 EUR
MOH London€793 EUR

43 data points across 9 retailers

9 retailers€369 EUR to €793 EUR

A
Cheapest Retailer
-
€369 EUR
$414 USD
A
Retailer 2
-
€396 EUR
$444 USD
View
A
Retailer 3
-
€397 EUR
$445 USD
View
A
Retailer 4
-
€447 EUR
£395 GBP
View
A
Retailer 5
-
€470 EUR
£415 GBP
View
B+
Retailer 6
-
€532 EUR
ZAR 9,634 ZAR
View
Retailer 7
-
€561 EUR
A$968 AUD
View
Price last confirmed 30 days ago
B+
Retailer 8
-
€625 EUR
View
Most Expensive
B
MOH London
BC35A9762 · Nov 2
€793 EUR
£700 GBP
View
8 more retailers have this diamond
Prices start from €369 EURSave up to €424 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
0.40ct Cushion
€369 EUR