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Cushion|Natural|GIA

0.40ct E SI2 Cushion Natural Diamond

VG • E/SI2 • GIA 1515556923

Certificate GIA 1515556923

Diamond specifications and retailer prices

From €397 EUR
$444 USD
As of October 29, 2026
Save €1,125 EUR (74%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €1,523 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1515556923. Listed at 9 retailers as of October 29, 2026, with prices from €397 to €1,523, a €1,125 spread on the same certified stone. NZ Jewellers lists it at €1,523. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.40
Carat
E
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryFair
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1515556923
Dimensions6.59 × 3.86 × 2.55 mm
L/W Ratio1.71
Culet sizeNone
Key to symbols
Feather
Top View
6.59 mm3.86 mm0.40 ctE / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryFair
FluorescenceNone
CertificateGIA 1515556923
Side View
Table 57.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 66.1%

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: €494 EUR|Low: €431 EUR|High: €929 EUR|Avg: €602 EUR|+6.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 4€437 EUR
Retailer 1€494 EUR
Retailer 2€602 EUR
Retailer 3€928 EUR

41 data points across 4 retailers

9 retailers€397 EUR to €1,523 EUR

A
Cheapest Retailer
-
€397 EUR
$444 USD
Retailer 2
-
€428 EUR
$478 USD
View
Price last confirmed 15 days ago
Retailer 3
-
€428 EUR
$478 USD
View
Price last confirmed 16 days ago
Retailer 4
-
€458 EUR
$512 USD
View
Price last confirmed 23 days ago
B+
Retailer 5
-
€494 EUR
£434 GBP
View
B+
Retailer 6
-
€602 EUR
View
Retailer 7
-
€928 EUR
£816 GBP
View
Price last confirmed 17 days ago
Retailer 8
-
€1,523 EUR
$1,701 USD
View
Price last confirmed 14 days ago
Most Expensive
C
NZ Jewellers
819023af-dfb5-4502-b7bc-a29206066013 · Oct 30
€1,523 EUR
$1,701 USD
View
8 more retailers have this diamond
Prices start from €397 EURSave up to €1,125 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
€397 EUR