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Marquise|Natural|GIA

0.50ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 6555767334

Certificate GIA 6555767334

Diamond specifications and retailer prices

From $913 AUD
HK$5,000 HKD
As of November 1, 2026
Save $1,332 AUD (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,843 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 F 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 6555767334. Listed at 20 retailers as of November 1, 2026, with a 146% 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle37.5°
OriginNatural
Grading LabGIA
CertificateGIA 6555767334
Dimensions8.92 × 4.18 × 2.37 mm
L/W Ratio2.13
Key to symbols
Feather
Top View
8.92 mm4.18 mm0.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555767334
Side View
Table 59.0%Crown 32.2°Girdle: STK-VTKPavilion 37.5°Culet: NoneDepth 56.6%

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: Nov 1
Current: $3,843 AUD|Low: $877 AUD|High: $3,843 AUD|Avg: $1,539 AUD|+6.7%
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 3$913 AUD
Retailer 10$1,093 AUD
Retailer 4$1,130 AUD
Retailer 16$1,226 AUD
Retailer 18$1,226 AUD
Retailer 9$1,241 AUD
Retailer 8$1,270 AUD
Retailer 17$1,273 AUD
Retailer 5$1,357 AUD
Retailer 15$1,414 AUD
Retailer 7$1,415 AUD
Retailer 6$1,455 AUD
Retailer 2$1,477 AUD
Retailer 12$1,504 AUD
Retailer 13$1,729 AUD
Retailer 14$1,892 AUD
Retailer 11$2,245 AUD
NZ Jewellers$3,843 AUD

25 data points across 18 retailers

20 retailers$913 AUD to $2,245 AUD

A
Cheapest Retailer
-
$913 AUD
HK$5,000 HKD
Retailer 2
-
$1,093 AUD
$766 USD
View
Price last confirmed 15 days ago
B+
Retailer 3
-
$1,130 AUD
$792 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,213 AUD
$850 USD
View
B+
Retailer 5
-
$1,226 AUD
$859 USD
View
B+
Retailer 6
-
$1,226 AUD
$859 USD
View
B+
Retailer 7
-
$1,241 AUD
$870 USD
View
B+
Retailer 8
-
$1,270 AUD
SGD 1,203 SGD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$1,273 AUD
$892 USD
View
B+
Retailer 10
-
$1,357 AUD
$951 USD
View
B+
Retailer 11
-
$1,414 AUD
$991 USD
View
B+
Retailer 12
-
$1,415 AUD
$992 USD
View
B+
Retailer 13
-
$1,455 AUD
$1,020 USD
View
B+
Retailer 14
-
$1,477 AUD
£815 GBP
View
B+
Retailer 15
-
$1,504 AUD
£830 GBP
View
B
Retailer 16
-
$1,729 AUD
€1,154 EUR
View
Retailer 17
-
$1,843 AUD
View
Price last confirmed 29 days ago
B
Retailer 18
-
$1,892 AUD
ZAR 21,417 ZAR
View
B
Retailer 19
-
$2,245 AUD
£1,239 GBP
View
Most Expensive
NZ Jewellers
0404b563-645a-408c-9631-26567cf1751a · Nov 3
$3,843 AUD
$2,693 USD
View
Price under review
19 more retailers have this diamond
Prices start from $913 AUDSave up to $1,332 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
$913 AUD