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Marquise|Natural|GIA

0.50ct G SI2 Marquise Natural Diamond

EX • G/SI2 • GIA 3565193131

Certificate GIA 3565193131

Diamond specifications and retailer prices

From $640 AUD
As of November 2, 2026
Save $1,963 AUD (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,604 AUD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 0.5ct natural marquise diamond

This 0.5ct natural marquise sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3565193131. Listed at 17 retailers as of November 2, 2026, with prices from $640 to $2,604, a $1,963 spread on the same certified stone. NZ Jewellers lists it at $2,604. 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

0.50
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle37.5°
Pavilion angle40.9°
OriginNatural
Grading LabGIA
CertificateGIA 3565193131
Dimensions7.73 × 4.18 × 2.71 mm
L/W Ratio1.85
Girdle conditionFaceted
Culet sizeNone
Top View
7.73 mm4.18 mm0.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3565193131
Side View
Table 58.0%Crown 37.5°Girdle: MED-VTKPavilion 40.9°Culet: NoneDepth 64.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,604 AUD|Low: $640 AUD|High: $2,617 AUD|Avg: $1,070 AUD|-0.5%
NZ Jewellers
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
November 3, 2026
Retailer 13$640 AUD
Retailer 10$726 AUD
Retailer 5$766 AUD
Retailer 9$771 AUD
Retailer 4$830 AUD
Retailer 3$894 AUD
Retailer 18$894 AUD
Retailer 8$898 AUD
Retailer 16$958 AUD
Retailer 7$1,017 AUD
Retailer 11$1,017 AUD
Retailer 15$1,026 AUD
Retailer 17$1,039 AUD
Retailer 6$1,100 AUD
Retailer 2$1,157 AUD
Retailer 12$1,195 AUD
Retailer 14$1,915 AUD
NZ Jewellers$2,604 AUD

26 data points across 18 retailers

17 retailers$640 AUD to $2,604 AUD

A
Cheapest Retailer
-
$640 AUD
A
Retailer 2
-
$726 AUD
View
A
Retailer 3
-
$771 AUD
View
A
Retailer 4
-
$830 AUD
View
Retailer 5
-
$894 AUD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$894 AUD
View
Retailer 7
-
$898 AUD
View
Price last confirmed 10 days ago
A
Retailer 8
-
$958 AUD
View
A
Retailer 9
-
$1,017 AUD
View
A
Retailer 10
-
$1,017 AUD
View
A
Retailer 11
-
$1,026 AUD
View
A
Retailer 12
-
$1,039 AUD
View
B+
Retailer 13
-
$1,100 AUD
View
B+
Retailer 14
-
$1,157 AUD
View
B+
Retailer 15
-
$1,195 AUD
View
B
Retailer 16
-
$1,915 AUD
View
Most Expensive
B
NZ Jewellers
c0f936e5-6a7d-415a-b5f7-31d8ef9c91c6 · Nov 3
$2,604 AUD
$1,789 USD
View
16 more retailers have this diamond
Prices start from $640 AUDSave up to $1,963 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
0.50ct Marquise
$640 AUD