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Cushion|Natural|GIA

0.40ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2554184590

Certificate GIA 2554184590

Diamond specifications and retailer prices

From HK$3,412 HKD
₹41,413 INR
As of October 31, 2026
Save HK$7,360 HKD (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$10,771 HKD at MOH London · As of November 1, 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 D 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 2554184590. Listed at 12 retailers as of October 31, 2026, with prices from HK$3,412 to HK$10,771, a HK$7,360 spread on the same certified stone. MOH London lists it at HK$10,771. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2554184590
Dimensions4.25 × 4.16 × 2.76 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal
Top View
4.25 mm4.16 mm0.40 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2554184590
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.3%

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 31
Current: HK$10,771 HKD|Low: HK$3,403 HKD|High: HK$10,901 HKD|Avg: HK$6,695 HKD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3HK$3,412 HKD
Retailer 7HK$5,021 HKD
Retailer 2HK$5,727 HKD
Retailer 6HK$6,391 HKD
Retailer 4HK$6,903 HKD
Retailer 8HK$7,012 HKD
Retailer 5HK$7,231 HKD
MOH LondonHK$10,771 HKD

37 data points across 8 retailers

12 retailersHK$3,412 HKD to HK$10,771 HKD

A
Cheapest Retailer
-
HK$3,412 HKD
₹41,413 INR
B+
Retailer 2
-
HK$5,021 HKD
$640 USD
View
B+
Retailer 3
-
HK$5,296 HKD
$675 USD
View
B+
Retailer 4
-
HK$5,382 HKD
$686 USD
View
B+
Retailer 5
-
HK$5,547 HKD
$707 USD
View
B+
Retailer 6
-
HK$5,727 HKD
£575 GBP
View
B+
Retailer 7
-
HK$6,391 HKD
£641 GBP
View
B
Retailer 8
-
HK$6,458 HKD
$823 USD
View
B+
Retailer 9
-
HK$6,903 HKD
€838 EUR
View
Retailer 10
-
HK$7,012 HKD
A$1,375 AUD
View
Price last confirmed 28 days ago
B+
Retailer 11
-
HK$7,231 HKD
ZAR 14,890 ZAR
View
Most Expensive
B
MOH London
B7196D1BA · Nov 1
HK$10,771 HKD
£1,081 GBP
View
11 more retailers have this diamond
Prices start from HK$3,412 HKDSave up to HK$7,360 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$3,412 HKD