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Cushion|Natural|GIA

0.40ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 2554949490

Certificate GIA 2554949490

Diamond specifications and retailer prices

From HK$4,585 HKD
As of November 7, 2026
Save HK$3,955 HKD (46%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$8,540 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 2554949490. Listed at 5 retailers as of November 7, 2026, with prices from HK$4,585 to HK$8,540, a HK$3,955 spread on the same certified stone. MOH London lists it at HK$8,540. 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
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554949490
Dimensions4.11 × 4.03 × 2.81 mm
L/W Ratio1.02
Key to symbols
Feather
Top View
4.11 mm4.03 mm0.40 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554949490
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCuletDepth 69.8%

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$8,540 HKD|Low: HK$4,326 HKD|High: HK$9,436 HKD|Avg: HK$5,933 HKD|-9.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 2HK$4,585 HKD
Retailer 4HK$5,086 HKD
Retailer 3HK$5,565 HKD
Retailer 5HK$5,886 HKD
MOH LondonHK$8,540 HKD

46 data points across 5 retailers

5 retailersHK$4,585 HKD to HK$8,540 HKD

A
Cheapest Retailer
-
HK$4,585 HKD
B+
Retailer 2
-
HK$5,086 HKD
View
B+
Retailer 3
-
HK$5,565 HKD
View
Retailer 4
-
HK$5,886 HKD
View
Price last confirmed 34 days ago
Most Expensive
B
MOH London
978F7D1E5 · Nov 7
HK$8,540 HKD
£858 GBP
View
4 more retailers have this diamond
Prices start from HK$4,585 HKDSave up to HK$3,955 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$4,585 HKD