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Marquise|Natural|GIA

0.50ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 1548044206

Certificate GIA 1548044206

Diamond specifications and retailer prices

From HK$4,959 HKD
$632 USD
As of November 3, 2026
Save HK$7,676 HKD (61%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$17,152 HKD at NZ Jewellers · As of November 3, 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 1548044206. Listed at 14 retailers as of November 2, 2026, with a 155% 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
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1548044206
Dimensions8.32 × 4.08 × 2.53 mm
L/W Ratio2.04
Key to symbols
Feather, Cloud
Top View
8.32 mm4.08 mm0.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 1548044206
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: HK$17,152 HKD|Low: HK$3,813 HKD|High: HK$17,152 HKD|Avg: HK$7,663 HKD
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 3, 2026
Retailer 15HK$3,813 HKD
Retailer 3HK$4,959 HKD
Retailer 8HK$5,053 HKD
Retailer 6HK$5,100 HKD
Retailer 4HK$5,335 HKD
Retailer 16HK$5,720 HKD
Retailer 14HK$6,073 HKD
Retailer 7HK$6,293 HKD
Retailer 12HK$6,434 HKD
Retailer 5HK$6,554 HKD
Retailer 2HK$6,755 HKD
Retailer 10HK$7,324 HKD
Retailer 11HK$8,443 HKD
Retailer 9HK$12,635 HKD
Retailer 13HK$15,731 HKD
NZ JewellersHK$17,152 HKD

24 data points across 16 retailers

14 retailersHK$4,959 HKD to HK$12,635 HKD

B+
Cheapest Retailer
-
HK$4,959 HKD
$632 USD
B+
Retailer 2
-
HK$5,100 HKD
$650 USD
View
B+
Retailer 3
-
HK$5,335 HKD
$680 USD
View
B
Retailer 4
-
HK$5,720 HKD
$729 USD
View
B
Retailer 5
-
HK$6,073 HKD
$774 USD
View
B
Retailer 6
-
HK$6,293 HKD
$802 USD
View
B
Retailer 7
-
HK$6,434 HKD
$820 USD
View
B
Retailer 8
-
HK$6,554 HKD
$835 USD
View
B
Retailer 9
-
HK$6,755 HKD
£678 GBP
View
B
Retailer 10
-
HK$7,324 HKD
€889 EUR
View
B
Retailer 11
-
HK$8,443 HKD
ZAR 17,384 ZAR
View
B
Retailer 12
-
HK$12,635 HKD
£1,268 GBP
View
Retailer 13
-
HK$15,731 HKD
CA$2,785 CAD
View
Price under review
Most Expensive
NZ Jewellers
92e177b9-a25f-4889-a9b8-e24b7bbe50ef · Nov 3
HK$17,152 HKD
$2,186 USD
View
Price under review
13 more retailers have this diamond
Prices start from HK$4,959 HKDSave up to HK$7,676 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.

B+
0.50ct Marquise
HK$4,959 HKD