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Marquise|Natural|GIA

0.40ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 6512068078

Certificate GIA 6512068078

Diamond specifications and retailer prices

From $507 AUD
As of November 6, 2026
Save $1,122 AUD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,629 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 6512068078. Listed at 15 retailers as of November 4, 2026, with prices from $507 to $1,629, a $1,122 spread on the same certified stone. MOH London lists it at $1,629. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6512068078
Dimensions6.68 × 3.65 × 2.71 mm
L/W Ratio1.83
Top View
6.68 mm3.65 mm0.40 ctE / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6512068078
Side View
Table 60.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 74.4%

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 6
Current: $1,629 AUD|Low: $507 AUD|High: $2,708 AUD|Avg: $1,042 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 2$507 AUD
Retailer 8$707 AUD
Retailer 3$714 AUD
Retailer 5$736 AUD
Retailer 7$761 AUD
Retailer 9$816 AUD
Retailer 6$951 AUD
Retailer 11$967 AUD
Retailer 4$1,421 AUD
MOH London$1,629 AUD
Retailer 10$2,708 AUD

37 data points across 11 retailers

15 retailers$507 AUD to $1,629 AUD

A
Cheapest Retailer
-
$507 AUD
A
Retailer 2
-
$603 AUD
View
B+
Retailer 3
-
$707 AUD
View
Retailer 4
-
$714 AUD
View
Price last confirmed 16 days ago
B+
Retailer 5
-
$736 AUD
View
B+
Retailer 6
-
$761 AUD
View
Retailer 7
-
$761 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$816 AUD
View
B
Retailer 9
-
$883 AUD
View
B
Retailer 10
-
$893 AUD
View
B
Retailer 11
-
$951 AUD
View
B
Retailer 12
-
$967 AUD
View
B
Retailer 13
-
$1,421 AUD
View
Most Expensive
B
MOH London
CC5D96850 · Nov 4
$1,629 AUD
£898 GBP
View
13 more retailers have this diamond
Prices start from $507 AUDSave up to $1,122 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.

A
0.40ct Marquise
$507 AUD