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Marquise|Natural|GIA

0.40ct E SI2 Marquise Natural Diamond

ID • E/SI2 • GIA 7558335818

Certificate GIA 7558335818

Diamond specifications and retailer prices

From $783 AUD
As of November 5, 2026
Save $491 AUD (39%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,992 AUD at MOH London · As of November 4, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558335818. Listed at 20 retailers as of November 2, 2026, with a 63% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558335818
Dimensions7.93 × 3.65 × 2.28 mm
L/W Ratio2.17
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
7.93 mm3.65 mm0.40 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558335818
Side View
Table 56.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 62.5%

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 5
Current: $1,992 AUD|Low: $729 AUD|High: $2,708 AUD|Avg: $1,206 AUD|-0.2%
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
Retailer 18
Retailer 19
November 6, 2026
Retailer 14$729 AUD
Retailer 19$783 AUD
Retailer 7$843 AUD
Retailer 16$843 AUD
Retailer 18$881 AUD
Retailer 3$903 AUD
Retailer 15$917 AUD
Retailer 17$924 AUD
Retailer 10$1,000 AUD
Retailer 11$1,000 AUD
Retailer 8$1,027 AUD
Retailer 9$1,029 AUD
Retailer 2$1,050 AUD
Retailer 6$1,089 AUD
Retailer 13$1,183 AUD
Retailer 12$1,274 AUD
MOH London$1,992 AUD
Retailer 5$2,467 AUD
Retailer 4$2,708 AUD

43 data points across 19 retailers

20 retailers$783 AUD to $1,274 AUD

Retailer 1
-
$729 AUD
Price last confirmed 16 days ago
B+
Retailer 2
-
$783 AUD
View
B+
Retailer 3
-
$799 AUD
View
B+
Retailer 4
-
$843 AUD
View
Retailer 5
-
$843 AUD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$881 AUD
View
B
Retailer 7
-
$903 AUD
View
B
Retailer 8
-
$917 AUD
View
B
Retailer 9
-
$924 AUD
View
B
Retailer 10
-
$1,000 AUD
View
B
Retailer 11
-
$1,000 AUD
View
B
Retailer 12
-
$1,027 AUD
View
B
Retailer 13
-
$1,029 AUD
View
B
Retailer 14
-
$1,050 AUD
View
B
Retailer 15
-
$1,089 AUD
View
Retailer 16
-
$1,183 AUD
View
Price last confirmed 7 days ago
B
Retailer 17
-
$1,274 AUD
View
Most Expensive
MOH London
E250BE6CB · Nov 4
$1,992 AUD
£1,098 GBP
View
Price under review
17 more retailers have this diamond
Prices start from $783 AUDSave up to $491 AUD

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
$783 AUD