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Marquise|Natural|GIA

0.40ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 1549594390

Certificate GIA 1549594390

Diamond specifications and retailer prices

From $485 AUD
₹32,372 INR
As of November 2, 2026
Save $1,061 AUD (69%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,546 AUD 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1549594390. Listed at 20 retailers as of November 2, 2026, with prices from $485 to $1,546, a $1,061 spread on the same certified stone. MOH London lists it at $1,546. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1549594390
Dimensions8.10 × 3.63 × 2.24 mm
L/W Ratio2.23
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Crystal
Top View
8.10 mm3.63 mm0.40 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 1549594390
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.8%

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 2
Current: $1,546 AUD|Low: $484 AUD|High: $1,678 AUD|Avg: $914 AUD|-7.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 2$485 AUD
Retailer 10$566 AUD
Retailer 12$699 AUD
Retailer 9$771 AUD
Retailer 3$772 AUD
Retailer 6$835 AUD
Retailer 11$857 AUD
Retailer 8$918 AUD
Retailer 5$1,010 AUD
Retailer 7$1,038 AUD
Retailer 4$1,080 AUD
MOH London$1,546 AUD

32 data points across 12 retailers

20 retailers$485 AUD to $1,546 AUD

A
Cheapest Retailer
-
$485 AUD
₹32,372 INR
A
Retailer 2
-
$566 AUD
HK$3,100 HKD
View
B+
Retailer 3
-
$699 AUD
SGD 662 SGD
View
Retailer 4
-
$706 AUD
$495 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$718 AUD
$503 USD
View
Price last confirmed 25 days ago
Retailer 6
-
$761 AUD
$533 USD
View
Price last confirmed 32 days ago
B+
Retailer 7
-
$771 AUD
$540 USD
View
B+
Retailer 8
-
$772 AUD
$541 USD
View
Retailer 9
-
$773 AUD
$542 USD
View
Price last confirmed 25 days ago
Retailer 10
-
$815 AUD
$571 USD
View
Price last confirmed 39 days ago
Retailer 11
-
$829 AUD
$581 USD
View
Price last confirmed 31 days ago
B
Retailer 12
-
$835 AUD
£461 GBP
View
B+
Retailer 13
-
$857 AUD
$600 USD
View
B
Retailer 14
-
$918 AUD
£506 GBP
View
B
Retailer 15
-
$1,010 AUD
€674 EUR
View
B
Retailer 16
-
$1,038 AUD
ZAR 11,755 ZAR
View
Retailer 17
-
$1,080 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
MOH London
8650FE27F · Nov 2
$1,546 AUD
£853 GBP
View
17 more retailers have this diamond
Prices start from $485 AUDSave up to $1,061 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
$485 AUD