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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 3555673014

Certificate GIA 3555673014

Diamond specifications and retailer prices

From $1,201 AUD
As of November 4, 2026
Save $1,424 AUD (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $4,504 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555673014. Listed at 23 retailers as of November 4, 2026, with a 119% 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.8°
Pavilion angle38.5°
OriginNatural
Grading LabGIA
CertificateGIA 3555673014
Dimensions8.04 × 4.23 × 2.56 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Top View
8.04 mm4.23 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555673014
Side View
Table 61.0%Crown 37.8°Girdle: MED-THKPavilion 38.5°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,504 AUD|Low: $1,001 AUD|High: $4,504 AUD|Avg: $1,867 AUD
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
November 6, 2026
Retailer 12$1,201 AUD
Retailer 10$1,207 AUD
Retailer 3$1,277 AUD
Retailer 5$1,301 AUD
Retailer 4$1,307 AUD
Retailer 14$1,351 AUD
Retailer 6$1,501 AUD
Retailer 11$1,528 AUD
Retailer 7$1,667 AUD
Retailer 13$1,877 AUD
Retailer 2$2,006 AUD
Retailer 8$2,216 AUD
Retailer 9$2,626 AUD
NZ Jewellers$4,504 AUD

45 data points across 14 retailers

23 retailers$1,201 AUD to $2,626 AUD

Retailer 1
-
$840 AUD
Price last confirmed 63 days ago
Retailer 2
-
$1,041 AUD
View
Price last confirmed 66 days ago
B+
Retailer 3
-
$1,201 AUD
View
Final sale: no returns
B+
Retailer 4
-
$1,204 AUD
View
Retailer 5
-
$1,207 AUD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$1,277 AUD
View
B+
Retailer 7
-
$1,289 AUD
View
Retailer 8
-
$1,301 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$1,301 AUD
View
B+
Retailer 10
-
$1,307 AUD
View
B+
Retailer 11
-
$1,314 AUD
View
B+
Retailer 12
-
$1,351 AUD
View
B
Retailer 13
-
$1,501 AUD
View
B
Retailer 14
-
$1,528 AUD
View
B+
Retailer 15
-
$1,614 AUD
View
B+
Retailer 16
-
$1,667 AUD
View
Retailer 17
-
$1,877 AUD
View
Price last confirmed 33 days ago
B
Retailer 18
-
$1,896 AUD
View
B
Retailer 19
-
$2,006 AUD
View
B
Retailer 20
-
$2,216 AUD
View
B
Retailer 21
-
$2,324 AUD
View
B
Retailer 22
-
$2,626 AUD
View
Most Expensive
NZ Jewellers
a4464c76-57a6-4d98-832a-e3dcbcb31472 · Nov 5
$4,504 AUD
$3,153 USD
View
Price under review
22 more retailers have this diamond
Prices start from $1,201 AUDSave up to $1,424 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.

B+
0.50ct Marquise
$1,201 AUD