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Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 6562499780

Certificate GIA 6562499780

Diamond specifications and retailer prices

From HK$4,499 HKD
As of November 6, 2026
Save HK$6,662 HKD (60%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$19,139 HKD 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6562499780. Listed at 18 retailers as of November 4, 2026, with a 148% 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6562499780
Dimensions8.10 × 4.22 × 2.64 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud
Top View
8.10 mm4.22 mm0.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6562499780
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.7%

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 6
Current: HK$19,139 HKD|Low: HK$4,499 HKD|High: HK$19,437 HKD|Avg: HK$7,773 HKD|-1.5%
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 6, 2026
Retailer 2HK$4,499 HKD
Retailer 7HK$5,447 HKD
Retailer 6HK$5,643 HKD
Retailer 3HK$6,105 HKD
Retailer 17HK$6,105 HKD
Retailer 5HK$6,199 HKD
Retailer 18HK$6,340 HKD
Retailer 9HK$6,897 HKD
Retailer 10HK$7,046 HKD
Retailer 16HK$7,140 HKD
Retailer 13HK$7,218 HKD
Retailer 8HK$7,281 HKD
Retailer 4HK$7,446 HKD
Retailer 11HK$7,446 HKD
Retailer 12HK$7,877 HKD
Retailer 14HK$9,413 HKD
Retailer 15HK$11,160 HKD
NZ JewellersHK$19,139 HKD

21 data points across 18 retailers

18 retailersHK$4,499 HKD to HK$11,160 HKD

A
Cheapest Retailer
-
HK$4,499 HKD
B+
Retailer 2
-
HK$5,447 HKD
View
B+
Retailer 3
-
HK$5,643 HKD
View
Retailer 4
-
HK$6,105 HKD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
HK$6,105 HKD
View
B+
Retailer 6
-
HK$6,199 HKD
View
B+
Retailer 7
-
HK$6,340 HKD
View
B
Retailer 8
-
HK$6,897 HKD
View
B+
Retailer 9
-
HK$7,046 HKD
View
B+
Retailer 10
-
HK$7,140 HKD
View
B+
Retailer 11
-
HK$7,218 HKD
View
B+
Retailer 12
-
HK$7,281 HKD
View
B+
Retailer 13
-
HK$7,446 HKD
View
B+
Retailer 14
-
HK$7,446 HKD
View
B
Retailer 15
-
HK$7,877 HKD
View
B
Retailer 16
-
HK$9,413 HKD
View
B
Retailer 17
-
HK$11,160 HKD
View
Most Expensive
NZ Jewellers
84a52555-a39d-4d83-a36b-e799c92ae233 · Nov 5
HK$19,139 HKD
$2,442 USD
View
Price under review
17 more retailers have this diamond
Prices start from HK$4,499 HKDSave up to HK$6,662 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$4,499 HKD