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Marquise|Natural|GIA

0.50ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 3555698145

Certificate GIA 3555698145

Diamond specifications and retailer prices

From $840 AUD
HK$4,600 HKD
As of November 1, 2026
Save $1,447 AUD (63%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,106 AUD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555698145. Listed at 17 retailers as of November 1, 2026, with a 172% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle35°
Pavilion angle39.5°
OriginNatural
Grading LabGIA
CertificateGIA 3555698145
Dimensions8.51 × 4.01 × 2.51 mm
L/W Ratio2.12
Key to symbols
Twinning Wisp
Top View
8.51 mm4.01 mm0.50 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 3555698145
Side View
Table 56.0%Crown 35°Girdle: STK-ETKPavilion 39.5°Culet: NoneDepth 62.5%

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: $3,106 AUD|Low: $804 AUD|High: $3,106 AUD|Avg: $1,278 AUD|+3.6%
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
November 2, 2026
Retailer 3$840 AUD
Retailer 4$913 AUD
Retailer 13$990 AUD
Retailer 15$990 AUD
Retailer 16$999 AUD
Retailer 14$1,029 AUD
Retailer 7$1,030 AUD
Retailer 8$1,143 AUD
Retailer 12$1,143 AUD
Retailer 5$1,157 AUD
Retailer 6$1,179 AUD
Retailer 2$1,183 AUD
Retailer 10$1,213 AUD
Retailer 9$1,408 AUD
Retailer 11$2,287 AUD
NZ Jewellers$3,106 AUD

28 data points across 16 retailers

17 retailers$840 AUD to $2,287 AUD

A
Cheapest Retailer
-
$840 AUD
HK$4,600 HKD
A
Retailer 2
-
$913 AUD
$640 USD
View
Final sale: no returns
A
Retailer 3
-
$990 AUD
$694 USD
View
A
Retailer 4
-
$990 AUD
$694 USD
View
A
Retailer 5
-
$999 AUD
$700 USD
View
A
Retailer 6
-
$1,029 AUD
$721 USD
View
B+
Retailer 7
-
$1,030 AUD
SGD 975 SGD
View
B+
Retailer 8
-
$1,143 AUD
$801 USD
View
Retailer 9
-
$1,143 AUD
$801 USD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
$1,157 AUD
$811 USD
View
B+
Retailer 11
-
$1,179 AUD
$826 USD
View
B+
Retailer 12
-
$1,183 AUD
£653 GBP
View
B+
Retailer 13
-
$1,213 AUD
£669 GBP
View
Retailer 14
-
$1,325 AUD
£731 GBP
View
Price last confirmed 40 days ago
B
Retailer 15
-
$1,408 AUD
€940 EUR
View
B
Retailer 16
-
$2,287 AUD
£1,262 GBP
View
Most Expensive
NZ Jewellers
7df688dc-f948-42d9-b201-ae5376be34a6 · Oct 30
$3,106 AUD
$2,177 USD
View
Price under review
16 more retailers have this diamond
Prices start from $840 AUDSave up to $1,447 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
$840 AUD