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Cushion|Natural|GIA

0.40ct E SI2 Cushion Natural Diamond

VG • E/SI2 • GIA 1515556923

Certificate GIA 1515556923

Diamond specifications and retailer prices

From HK$3,484 HKD
$444 USD
As of October 29, 2026
Save HK$1,789 HKD (34%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$13,347 HKD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1515556923. Listed at 8 retailers as of October 28, 2026, with a 51% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryFair
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1515556923
Dimensions6.59 × 3.86 × 2.55 mm
L/W Ratio1.71
Culet sizeNone
Key to symbols
Feather
Top View
6.59 mm3.86 mm0.40 ctE / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryFair
FluorescenceNone
CertificateGIA 1515556923
Side View
Table 57.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 66.1%

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 29
Current: HK$4,328 HKD|Low: HK$3,777 HKD|High: HK$8,141 HKD|Avg: HK$5,236 HKD|+6.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 4HK$3,834 HKD
Retailer 1HK$4,328 HKD
Retailer 2HK$5,273 HKD
Retailer 3HK$8,131 HKD

41 data points across 4 retailers

8 retailersHK$3,484 HKD to HK$5,273 HKD

A
Cheapest Retailer
-
HK$3,484 HKD
$444 USD
A
Retailer 2
-
HK$3,751 HKD
$478 USD
View
Price last confirmed 12 days ago
A
Retailer 3
-
HK$3,751 HKD
$478 USD
View
Price last confirmed 13 days ago
B+
Retailer 4
-
HK$4,017 HKD
$512 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
HK$4,328 HKD
£434 GBP
View
B+
Retailer 6
-
HK$5,273 HKD
€640 EUR
View
B
Retailer 7
-
HK$8,131 HKD
£816 GBP
View
Price last confirmed 14 days ago
Most Expensive
C
NZ Jewellers
2f6d4054-413a-4783-a07f-51e227086efd · Oct 17
HK$13,347 HKD
$1,701 USD
View
Price last confirmed 12 days ago
7 more retailers have this diamond
Prices start from HK$3,484 HKDSave up to HK$1,789 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$3,484 HKD