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Marquise|Natural|GIA

0.40ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 1567350181

Certificate GIA 1567350181

Diamond specifications and retailer prices

From $426 AUD
As of November 6, 2026
Save $940 AUD (69%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,271 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 1567350181. Listed at 9 retailers as of November 4, 2026, with a 221% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1567350181
Dimensions8.20 × 3.73 × 2.25 mm
L/W Ratio2.20
Girdle conditionMedium to Thick
Key to symbols
Cloud, Feather
Top View
8.20 mm3.73 mm0.40 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1567350181
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 60.2%

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: $2,271 AUD|Low: $419 AUD|High: $2,408 AUD|Avg: $984 AUD|-5.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 2$426 AUD
Retailer 9$511 AUD
Retailer 8$593 AUD
Retailer 4$626 AUD
Retailer 7$639 AUD
Retailer 5$949 AUD
Retailer 3$1,191 AUD
Retailer 6$1,366 AUD
NZ Jewellers$2,271 AUD

29 data points across 9 retailers

9 retailers$426 AUD to $1,366 AUD

A
Cheapest Retailer
-
$426 AUD
A
Retailer 2
-
$511 AUD
View
A
Retailer 3
-
$593 AUD
View
A
Retailer 4
-
$626 AUD
View
A
Retailer 5
-
$639 AUD
View
B+
Retailer 6
-
$949 AUD
View
B
Retailer 7
-
$1,191 AUD
View
B
Retailer 8
-
$1,366 AUD
View
Most Expensive
NZ Jewellers
dbd2c476-e478-4a81-92b5-a5deb8ec2004 · Nov 5
$2,271 AUD
$1,590 USD
View
Price under review
8 more retailers have this diamond
Prices start from $426 AUDSave up to $940 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
$426 AUD