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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 €521 EUR
$580 USD
As of October 28, 2026
Save €281 EUR (35%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €802 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 28, 2026, with prices from €521 to €802, a €281 spread on the same certified stone. MOH London lists it at €802. 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
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: €802 EUR|Low: €502 EUR|High: €807 EUR|Avg: €618 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 4€502 EUR
Retailer 3€521 EUR
Retailer 2€641 EUR
MOH London€802 EUR

19 data points across 4 retailers

3 retailers€521 EUR to €802 EUR

B+
Cheapest Retailer
-
€521 EUR
$580 USD
B+
Retailer 2
-
€641 EUR
View
Most Expensive
B
MOH London
53BC1F2C8 · Oct 29
€802 EUR
£703 GBP
View
2 more retailers have this diamond
Prices start from €521 EURSave up to €281 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
€521 EUR