CaratHunter
Plans
Cushion|Natural|GIA

0.40ct E SI2 Cushion Natural Diamond

GD • E/SI2 • GIA 1558384159

Certificate GIA 1558384159

Diamond specifications and retailer prices

From £323 GBP
SGD 581 SGD
As of October 27, 2026
Save £392 GBP (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £715 GBP 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1558384159. Listed at 11 retailers as of October 27, 2026, with prices from £323 to £715, a £392 spread on the same certified stone. MOH London lists it at £715. 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
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558384159
Dimensions5.03 × 3.78 × 2.61 mm
L/W Ratio1.33
Culet sizeNone
Key to symbols
Crystal, Cloud
Top View
5.03 mm3.78 mm0.40 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558384159
Side View
Table 59.0%CrownGirdle: THN-ETKPavilionCulet: NoneDepth 69.1%

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 27
Current: £715 GBP|Low: £228 GBP|High: £720 GBP|Avg: £475 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 6£332 GBP
Retailer 2£380 GBP
Retailer 7£415 GBP
Retailer 5£422 GBP
Retailer 4£508 GBP
Retailer 3£627 GBP
MOH London£715 GBP

41 data points across 7 retailers

11 retailers£323 GBP to £715 GBP

A
Cheapest Retailer
-
£323 GBP
SGD 581 SGD
A
Retailer 2
-
£332 GBP
$442 USD
View
A
Retailer 3
-
£355 GBP
$473 USD
View
A
Retailer 4
-
£380 GBP
View
B+
Retailer 5
-
£406 GBP
$541 USD
View
B+
Retailer 6
-
£415 GBP
$553 USD
View
A
Retailer 7
-
£422 GBP
View
B+
Retailer 8
-
£496 GBP
$660 USD
View
B+
Retailer 9
-
£508 GBP
€644 EUR
View
B
Retailer 10
-
£627 GBP
View
Most Expensive
B
MOH London
CFABDFC84 · Oct 29
£715 GBP
View
10 more retailers have this diamond
Prices start from £323 GBPSave up to £392 GBP

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
£323 GBP