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Cushion|Natural|GIA

0.40ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 6502010152

Certificate GIA 6502010152

Diamond specifications and retailer prices

From £433 GBP
HK$4,500 HKD
As of October 29, 2026
Save £607 GBP (58%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,040 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6502010152. Listed at 7 retailers as of October 29, 2026, with prices from £433 to £1,040, a £607 spread on the same certified stone. MOH London lists it at £1,040. 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
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6502010152
Dimensions7.95 × 3.76 × 2.32 mm
L/W Ratio2.11
Top View
7.95 mm3.76 mm0.40 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6502010152
Side View
Table 55.0%CrownGirdle: ThickPavilionCulet: NoneDepth 61.7%

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: £1,040 GBP|Low: £433 GBP|High: £1,046 GBP|Avg: £594 GBP|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 5£433 GBP
Retailer 7£495 GBP
Retailer 8£500 GBP
Retailer 9£503 GBP
Retailer 11£536 GBP
Retailer 10£547 GBP
Retailer 2£550 GBP
Retailer 6£633 GBP
Retailer 4£661 GBP
Retailer 3£677 GBP
MOH London£1,040 GBP

39 data points across 11 retailers

7 retailers£433 GBP to £1,040 GBP

A
Cheapest Retailer
-
£433 GBP
HK$4,500 HKD
B+
Retailer 2
-
£503 GBP
$670 USD
View
B+
Retailer 3
-
£547 GBP
$728 USD
View
B+
Retailer 4
-
£550 GBP
View
B
Retailer 5
-
£633 GBP
View
Price last confirmed 32 days ago
B+
Retailer 6
-
£661 GBP
€838 EUR
View
Most Expensive
B
MOH London
1E6644B93 · Oct 29
£1,040 GBP
View
6 more retailers have this diamond
Prices start from £433 GBPSave up to £607 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
£433 GBP