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Cushion|Natural|GIA

0.40ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 5234370398

Certificate GIA 5234370398

Diamond specifications and retailer prices

From €519 EUR
$580 USD
As of October 30, 2026
Save €280 EUR (35%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €799 EUR at MOH London · As of October 29, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5234370398. Listed at 3 retailers as of October 29, 2026, with prices from €519 to €799, a €280 spread on the same certified stone. MOH London lists it at €799. 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
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryFair
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5234370398
Dimensions7.07 × 3.53 × 2.57 mm
L/W Ratio2.00
Top View
7.07 mm3.53 mm0.40 ctE / SI2
OriginNatural
CutExcellent
PolishGood
SymmetryFair
FluorescenceFaint
CertificateGIA 5234370398
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 72.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €799 EUR|Low: €500 EUR|High: €804 EUR|Avg: €615 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 4€500 EUR
Retailer 3€519 EUR
Retailer 2€640 EUR
MOH London€799 EUR

20 data points across 4 retailers

3 retailers€519 EUR to €799 EUR

B+
Cheapest Retailer
-
€519 EUR
$580 USD
B+
Retailer 2
-
€640 EUR
View
Most Expensive
B
MOH London
53BC1F2C8 · Oct 29
€799 EUR
£703 GBP
View
2 more retailers have this diamond
Prices start from €519 EURSave up to €280 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.

B+
0.40ct Cushion
€519 EUR