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Marquise|Natural|GIA

0.50ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 6555438330

Certificate GIA 6555438330

Diamond specifications and retailer prices

From HK$2,806 HKD
As of November 4, 2026
Save HK$9,867 HKD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$12,673 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 J 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 6555438330. Listed at 11 retailers as of November 4, 2026, with prices from HK$2,806 to HK$12,673, a HK$9,867 spread on the same certified stone. NZ Jewellers lists it at HK$12,673. 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555438330
Dimensions8.44 × 4.16 × 2.41 mm
L/W Ratio2.03
Girdle conditionThick to Very Thick
Key to symbols
Feather, Crystal
Top View
8.44 mm4.16 mm0.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555438330
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 57.9%

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 4
Current: HK$12,673 HKD|Low: HK$2,806 HKD|High: HK$12,908 HKD|Avg: HK$5,486 HKD|-1.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 11HK$2,806 HKD
Retailer 5HK$2,970 HKD
Retailer 10HK$3,409 HKD
Retailer 8HK$4,044 HKD
Retailer 9HK$4,287 HKD
Retailer 3HK$4,334 HKD
Retailer 7HK$4,350 HKD
Retailer 6HK$4,930 HKD
Retailer 2HK$6,552 HKD
Retailer 4HK$9,279 HKD
NZ JewellersHK$12,673 HKD

28 data points across 11 retailers

11 retailersHK$2,806 HKD to HK$12,673 HKD

A
Cheapest Retailer
-
HK$2,806 HKD
Final sale: no returns
A
Retailer 2
-
HK$2,970 HKD
View
A
Retailer 3
-
HK$3,409 HKD
View
A
Retailer 4
-
HK$4,044 HKD
View
A
Retailer 5
-
HK$4,287 HKD
View
Retailer 6
-
HK$4,334 HKD
View
Price last confirmed 13 days ago
A
Retailer 7
-
HK$4,350 HKD
View
B+
Retailer 8
-
HK$4,930 HKD
View
B+
Retailer 9
-
HK$6,552 HKD
View
B
Retailer 10
-
HK$9,279 HKD
View
Most Expensive
B
NZ Jewellers
62cd1bc3-5fc8-42e9-84af-cd8d77ad2090 · Nov 5
HK$12,673 HKD
$1,617 USD
View
10 more retailers have this diamond
Prices start from HK$2,806 HKDSave up to HK$9,867 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$2,806 HKD