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Cushion|Natural|GIA

0.40ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 6555182513

Certificate GIA 6555182513

Diamond specifications and retailer prices

From HK$3,347 HKD
As of November 7, 2026
Save HK$7,274 HKD (68%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$10,620 HKD at MOH London · As of November 7, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555182513. Listed at 13 retailers as of November 7, 2026, with prices from HK$3,347 to HK$10,620, a HK$7,274 spread on the same certified stone. MOH London lists it at HK$10,620. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555182513
Dimensions4.14 × 4.08 × 2.82 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud
Top View
4.14 mm4.08 mm0.40 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555182513
Side View
Table 63.0%CrownGirdle: THK-XTKPavilionCulet: NoneDepth 69.2%

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 7
Current: HK$10,620 HKD|Low: HK$3,347 HKD|High: HK$10,809 HKD|Avg: HK$6,632 HKD|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 2HK$3,347 HKD
Retailer 6HK$4,985 HKD
Retailer 5HK$5,228 HKD
Retailer 7HK$5,619 HKD
Retailer 10HK$6,113 HKD
Retailer 11HK$6,333 HKD
Retailer 4HK$6,497 HKD
Retailer 8HK$6,803 HKD
Retailer 3HK$6,952 HKD
Retailer 9HK$7,171 HKD
MOH LondonHK$10,620 HKD

36 data points across 11 retailers

13 retailersHK$3,347 HKD to HK$10,620 HKD

A
Cheapest Retailer
-
HK$3,347 HKD
B+
Retailer 2
-
HK$4,985 HKD
View
B+
Retailer 3
-
HK$5,228 HKD
View
B+
Retailer 4
-
HK$5,337 HKD
View
B+
Retailer 5
-
HK$5,518 HKD
View
B+
Retailer 6
-
HK$5,619 HKD
View
B+
Retailer 7
-
HK$6,113 HKD
View
B+
Retailer 8
-
HK$6,333 HKD
View
B
Retailer 9
-
HK$6,497 HKD
View
B+
Retailer 10
-
HK$6,803 HKD
View
Retailer 11
-
HK$6,952 HKD
View
Price last confirmed 34 days ago
B+
Retailer 12
-
HK$7,171 HKD
View
Most Expensive
B
MOH London
238577F87 · Nov 7
HK$10,620 HKD
£1,067 GBP
View
12 more retailers have this diamond
Prices start from HK$3,347 HKDSave up to HK$7,274 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$3,347 HKD