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Marquise|Natural|GIA

0.50ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 2557735757

Certificate GIA 2557735757

Diamond specifications and retailer prices

From HK$3,107 HKD
$396 USD
As of November 2, 2026
Save HK$7,186 HKD (70%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$16,336 HKD at NZ Jewellers · As of October 6, 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 2557735757. Listed at 10 retailers as of November 2, 2026, with a 231% 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557735757
Dimensions7.46 × 4.09 × 2.64 mm
L/W Ratio1.82
Girdle conditionVery Thick to Extremely Thick
Key to symbols
Feather
Top View
7.46 mm4.09 mm0.50 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557735757
Side View
Table 58.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 64.6%

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 2
Current: HK$6,653 HKD|Low: HK$3,013 HKD|High: HK$12,137 HKD|Avg: HK$5,407 HKD|-4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 7HK$3,107 HKD
Retailer 2HK$3,316 HKD
Retailer 5HK$3,816 HKD
Retailer 4HK$4,684 HKD
Retailer 6HK$4,686 HKD
Retailer 1HK$6,653 HKD
Retailer 3HK$10,293 HKD

44 data points across 7 retailers

10 retailersHK$3,107 HKD to HK$10,293 HKD

A
Cheapest Retailer
-
HK$3,107 HKD
$396 USD
Final sale: no returns
A
Retailer 2
-
HK$3,316 HKD
₹40,251 INR
View
A
Retailer 3
-
HK$3,816 HKD
View
A
Retailer 4
-
HK$4,684 HKD
$597 USD
View
A
Retailer 5
-
HK$4,686 HKD
SGD 807 SGD
View
Retailer 6
-
HK$5,100 HKD
$650 USD
View
Price last confirmed 33 days ago
Retailer 7
-
HK$5,210 HKD
$664 USD
View
Price last confirmed 26 days ago
B+
Retailer 8
-
HK$6,653 HKD
£668 GBP
View
B
Retailer 9
-
HK$10,293 HKD
£1,033 GBP
View
Most Expensive
NZ Jewellers
4986ef1d-02d4-45db-aca3-0243b5e8706b · Oct 6
HK$16,336 HKD
$2,082 USD
View
Price last confirmed 27 days ago
9 more retailers have this diamond
Prices start from HK$3,107 HKDSave up to HK$7,186 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$3,107 HKD