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Cushion|Natural|GIA

0.40ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 2554949490

Certificate GIA 2554949490

Diamond specifications and retailer prices

From €524 EUR
As of November 7, 2026
Save €452 EUR (46%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €976 EUR at MOH London · As of November 7, 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 E 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 2554949490. Listed at 5 retailers as of November 7, 2026, with prices from €524 to €976, a €452 spread on the same certified stone. MOH London lists it at €976. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554949490
Dimensions4.11 × 4.03 × 2.81 mm
L/W Ratio1.02
Key to symbols
Feather
Top View
4.11 mm4.03 mm0.40 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554949490
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCuletDepth 69.8%

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 7
Current: €976 EUR|Low: €494 EUR|High: €1,078 EUR|Avg: €678 EUR|-9.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 2€524 EUR
Retailer 4€581 EUR
Retailer 3€636 EUR
Retailer 5€673 EUR
MOH London€976 EUR

46 data points across 5 retailers

5 retailers€524 EUR to €976 EUR

A
Cheapest Retailer
-
€524 EUR
B+
Retailer 2
-
€581 EUR
View
B+
Retailer 3
-
€636 EUR
View
Retailer 4
-
€673 EUR
View
Price last confirmed 34 days ago
Most Expensive
B
MOH London
978F7D1E5 · Nov 7
€976 EUR
£858 GBP
View
4 more retailers have this diamond
Prices start from €524 EURSave up to €452 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
€524 EUR