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Marquise|Natural|GIA

0.40ct G SI1 Marquise Natural Diamond

ID • G/SI1 • GIA 6561323652

Certificate GIA 6561323652

Diamond specifications and retailer prices

From $444 AUD
₹29,638 INR
As of October 28, 2026
Save $791 AUD (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,403 AUD at MOH London · As of October 26, 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 6561323652. Listed at 21 retailers as of October 28, 2026, with a 178% 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
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561323652
Dimensions7.43 × 3.89 × 2.32 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Feather
Top View
7.43 mm3.89 mm0.40 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561323652
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 59.6%

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: Oct 28
Current: $1,403 AUD|Low: $444 AUD|High: $2,326 AUD|Avg: $857 AUD|-1.0%
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
Retailer 18
October 30, 2026
Retailer 15$444 AUD
Retailer 4$514 AUD
Retailer 3$542 AUD
Retailer 10$559 AUD
Retailer 9$606 AUD
Retailer 14$614 AUD
Retailer 5$654 AUD
Retailer 7$654 AUD
Retailer 6$701 AUD
Retailer 18$723 AUD
Retailer 11$752 AUD
Retailer 2$805 AUD
Retailer 16$831 AUD
Retailer 17$939 AUD
Retailer 13$966 AUD
Retailer 12$1,235 AUD
MOH London$1,403 AUD
Retailer 8$2,326 AUD

22 data points across 18 retailers

21 retailers$444 AUD to $1,235 AUD

A
Cheapest Retailer
-
$444 AUD
₹29,638 INR
A
Retailer 2
-
$514 AUD
$360 USD
View
Retailer 3
-
$542 AUD
$380 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$606 AUD
$425 USD
View
A
Retailer 5
-
$614 AUD
$430 USD
View
B+
Retailer 6
-
$654 AUD
$458 USD
View
B+
Retailer 7
-
$654 AUD
$458 USD
View
B+
Retailer 8
-
$701 AUD
$491 USD
View
B+
Retailer 9
-
$723 AUD
$507 USD
View
B+
Retailer 10
-
$752 AUD
£415 GBP
View
Retailer 11
-
$794 AUD
$556 USD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$805 AUD
$564 USD
View
B
Retailer 13
-
$831 AUD
£459 GBP
View
B+
Retailer 14
-
$866 AUD
$607 USD
View
B
Retailer 15
-
$906 AUD
$635 USD
View
Retailer 16
-
$939 AUD
ZAR 10,629 ZAR
View
Price last confirmed 7 days ago
B
Retailer 17
-
$966 AUD
€645 EUR
View
Retailer 18
-
$973 AUD
View
Price last confirmed 28 days ago
B
Retailer 19
-
$1,235 AUD
£681 GBP
View
Most Expensive
B
MOH London
CD984B5AA · Oct 26
$1,403 AUD
£774 GBP
View
Price last confirmed 7 days ago
19 more retailers have this diamond
Prices start from $444 AUDSave up to $791 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
$444 AUD