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Marquise|Natural|GIA

0.40ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 7556973931

Certificate GIA 7556973931

Diamond specifications and retailer prices

From HK$3,131 HKD
$399 USD
As of November 2, 2026
Save HK$4,451 HKD (59%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$8,649 HKD at MOH London · As of November 2, 2026
View at MOH London

About this 0.4ct natural marquise diamond

This 0.4ct natural marquise sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7556973931. Listed at 18 retailers as of November 2, 2026, with a 142% 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle38.5°
Pavilion angle40.1°
OriginNatural
Grading LabGIA
CertificateGIA 7556973931
Dimensions7.19 × 3.73 × 2.50 mm
L/W Ratio1.93
Girdle conditionFaceted
Culet sizeNone
Top View
7.19 mm3.73 mm0.40 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7556973931
Side View
Table 60.0%Crown 38.5°Girdle: MED-VTKPavilion 40.1°Culet: NDepth 66.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$8,649 HKD|Low: HK$3,131 HKD|High: HK$14,578 HKD|Avg: HK$5,142 HKD|-3.0%
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 2, 2026
Retailer 4HK$3,131 HKD
Retailer 8HK$3,178 HKD
Retailer 16HK$3,397 HKD
Retailer 7HK$3,421 HKD
Retailer 9HK$3,515 HKD
Retailer 3HK$3,656 HKD
Retailer 6HK$3,656 HKD
Retailer 15HK$3,915 HKD
Retailer 11HK$4,182 HKD
Retailer 17HK$4,253 HKD
Retailer 10HK$4,675 HKD
Retailer 5HK$5,022 HKD
Retailer 13HK$5,075 HKD
Retailer 12HK$5,809 HKD
Retailer 2HK$7,582 HKD
MOH LondonHK$8,649 HKD
Retailer 14HK$14,358 HKD

25 data points across 17 retailers

18 retailersHK$3,131 HKD to HK$7,582 HKD

B+
Cheapest Retailer
-
HK$3,131 HKD
$399 USD
Final sale: no returns
B+
Retailer 2
-
HK$3,178 HKD
$405 USD
View
B+
Retailer 3
-
HK$3,397 HKD
$433 USD
View
B+
Retailer 4
-
HK$3,421 HKD
$436 USD
View
B
Retailer 5
-
HK$3,515 HKD
View
B
Retailer 6
-
HK$3,656 HKD
$466 USD
View
B
Retailer 7
-
HK$3,656 HKD
$466 USD
View
B
Retailer 8
-
HK$3,915 HKD
$499 USD
View
B
Retailer 9
-
HK$4,182 HKD
$533 USD
View
B
Retailer 10
-
HK$4,253 HKD
$542 USD
View
B
Retailer 11
-
HK$4,675 HKD
£469 GBP
View
B
Retailer 12
-
HK$5,022 HKD
$640 USD
View
B
Retailer 13
-
HK$5,075 HKD
€616 EUR
View
C
Retailer 14
-
HK$5,809 HKD
ZAR 11,961 ZAR
View
Retailer 15
-
HK$6,110 HKD
A$1,198 AUD
View
Price last confirmed 29 days ago
C
Retailer 16
-
HK$7,582 HKD
£761 GBP
View
Most Expensive
MOH London
87867949D · Nov 2
HK$8,649 HKD
£868 GBP
View
Price under review
16 more retailers have this diamond
Prices start from HK$3,131 HKDSave up to HK$4,451 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.

B+
0.40ct Marquise
HK$3,131 HKD