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Cushion|Natural|GIA

0.40ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 2556278709

Certificate GIA 2556278709

Diamond specifications and retailer prices

From HK$4,546 HKD
As of November 4, 2026
Save HK$6,045 HKD (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$10,591 HKD at MOH London · As of November 4, 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556278709. Listed at 18 retailers as of November 4, 2026, with prices from HK$4,546 to HK$10,591, a HK$6,045 spread on the same certified stone. MOH London lists it at HK$10,591. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556278709
Dimensions4.97 × 3.80 × 2.62 mm
L/W Ratio1.31
Key to symbols
Cloud, Crystal, Feather
Top View
4.97 mm3.80 mm0.40 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556278709
Side View
Table 63.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 69.0%

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: Nov 4
Current: HK$10,591 HKD|Low: HK$4,546 HKD|High: HK$10,720 HKD|Avg: HK$6,497 HKD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 7, 2026
Retailer 17HK$4,546 HKD
Retailer 7HK$5,063 HKD
Retailer 10HK$5,306 HKD
Retailer 8HK$5,423 HKD
Retailer 13HK$5,471 HKD
Retailer 14HK$5,541 HKD
Retailer 6HK$5,729 HKD
Retailer 5HK$5,941 HKD
Retailer 9HK$6,043 HKD
Retailer 3HK$6,192 HKD
Retailer 4HK$6,442 HKD
Retailer 2HK$6,583 HKD
Retailer 11HK$6,583 HKD
Retailer 15HK$6,913 HKD
Retailer 16HK$7,289 HKD
Retailer 12HK$9,303 HKD
MOH LondonHK$10,591 HKD

34 data points across 17 retailers

18 retailersHK$4,546 HKD to HK$10,591 HKD

Retailer 1
-
HK$4,193 HKD
Price last confirmed 29 days ago
A
Retailer 2
-
HK$4,546 HKD
View
B+
Retailer 3
-
HK$5,063 HKD
View
B+
Retailer 4
-
HK$5,306 HKD
View
B+
Retailer 5
-
HK$5,423 HKD
View
B+
Retailer 6
-
HK$5,471 HKD
View
B
Retailer 7
-
HK$5,541 HKD
View
B
Retailer 8
-
HK$5,729 HKD
View
B
Retailer 9
-
HK$5,941 HKD
View
Retailer 10
-
HK$6,043 HKD
View
Price last confirmed 35 days ago
B
Retailer 11
-
HK$6,192 HKD
View
B
Retailer 12
-
HK$6,442 HKD
View
B
Retailer 13
-
HK$6,583 HKD
View
B
Retailer 14
-
HK$6,583 HKD
View
B
Retailer 15
-
HK$6,913 HKD
View
B
Retailer 16
-
HK$7,289 HKD
View
C
Retailer 17
-
HK$9,303 HKD
View
Most Expensive
B
MOH London
1BD99E0EB · Nov 4
HK$10,591 HKD
£1,064 GBP
View
17 more retailers have this diamond
Prices start from HK$4,546 HKDSave up to HK$6,045 HKD

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
HK$4,546 HKD