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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 HK$4,620 HKD
As of November 1, 2026
Save HK$7,955 HKD (63%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$17,081 HKD 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: HK$17,081 HKD|Low: HK$4,419 HKD|High: HK$17,081 HKD|Avg: HK$7,029 HKD|+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 3HK$4,620 HKD
Retailer 4HK$5,022 HKD
Retailer 13HK$5,445 HKD
Retailer 15HK$5,445 HKD
Retailer 16HK$5,492 HKD
Retailer 14HK$5,657 HKD
Retailer 7HK$5,661 HKD
Retailer 8HK$6,285 HKD
Retailer 12HK$6,285 HKD
Retailer 5HK$6,363 HKD
Retailer 6HK$6,483 HKD
Retailer 2HK$6,505 HKD
Retailer 10HK$6,669 HKD
Retailer 9HK$7,744 HKD
Retailer 11HK$12,575 HKD
NZ JewellersHK$17,081 HKD

28 data points across 16 retailers

17 retailersHK$4,620 HKD to HK$12,575 HKD

A
Cheapest Retailer
-
HK$4,620 HKD
A
Retailer 2
-
HK$5,022 HKD
$640 USD
View
Final sale: no returns
A
Retailer 3
-
HK$5,445 HKD
$694 USD
View
A
Retailer 4
-
HK$5,445 HKD
$694 USD
View
A
Retailer 5
-
HK$5,492 HKD
$700 USD
View
A
Retailer 6
-
HK$5,657 HKD
$721 USD
View
B+
Retailer 7
-
HK$5,661 HKD
SGD 975 SGD
View
B+
Retailer 8
-
HK$6,285 HKD
$801 USD
View
Retailer 9
-
HK$6,285 HKD
$801 USD
View
Price last confirmed 15 days ago
B+
Retailer 10
-
HK$6,363 HKD
$811 USD
View
B+
Retailer 11
-
HK$6,483 HKD
$826 USD
View
B+
Retailer 12
-
HK$6,505 HKD
£653 GBP
View
B+
Retailer 13
-
HK$6,669 HKD
£669 GBP
View
Retailer 14
-
HK$7,288 HKD
£731 GBP
View
Price last confirmed 40 days ago
B
Retailer 15
-
HK$7,744 HKD
€940 EUR
View
B
Retailer 16
-
HK$12,575 HKD
£1,262 GBP
View
Most Expensive
NZ Jewellers
7df688dc-f948-42d9-b201-ae5376be34a6 · Oct 30
HK$17,081 HKD
$2,177 USD
View
Price under review
16 more retailers have this diamond
Prices start from HK$4,620 HKDSave up to HK$7,955 HKD

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
HK$4,620 HKD