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Marquise|Natural|GIA

0.50ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 7561430819

Certificate GIA 7561430819

Diamond specifications and retailer prices

From $860 AUD
As of November 5, 2026
Save $1,246 AUD (59%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,613 AUD at NZ Jewellers · As of November 5, 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 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 7561430819. Listed at 11 retailers as of November 4, 2026, with a 145% 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

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

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7561430819
Dimensions8.48 × 4.04 × 2.48 mm
L/W Ratio2.10
Girdle conditionVery Thick
Top View
8.48 mm4.04 mm0.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7561430819
Side View
Table 60.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 61.4%

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 5
Current: $1,367 AUD|Low: $860 AUD|High: $2,134 AUD|Avg: $1,375 AUD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 3$860 AUD
Retailer 6$1,050 AUD
Retailer 7$1,169 AUD
Retailer 1$1,367 AUD
Retailer 2$1,371 AUD
Retailer 5$1,627 AUD
Retailer 4$2,106 AUD

31 data points across 7 retailers

11 retailers$860 AUD to $2,106 AUD

A
Cheapest Retailer
-
$860 AUD
A
Retailer 2
-
$897 AUD
View
Final sale: no returns
A
Retailer 3
-
$1,050 AUD
View
B+
Retailer 4
-
$1,169 AUD
View
B+
Retailer 5
-
$1,296 AUD
View
B+
Retailer 6
-
$1,341 AUD
View
B+
Retailer 7
-
$1,367 AUD
View
B+
Retailer 8
-
$1,371 AUD
View
B+
Retailer 9
-
$1,627 AUD
View
B
Retailer 10
-
$2,106 AUD
View
Most Expensive
NZ Jewellers
f1a9d7d7-0524-492a-803c-336e83648f21 · Nov 5
$3,613 AUD
$2,529 USD
View
Price under review
10 more retailers have this diamond
Prices start from $860 AUDSave up to $1,246 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
$860 AUD