CaratHunter
Plans
Marquise|Natural|GIA

0.50ct J SI1 Marquise Natural Diamond

VG • J/SI1 • GIA 1558597869

Certificate GIA 1558597869

Diamond specifications and retailer prices

From HK$4,017 HKD
As of November 1, 2026
Save HK$7,053 HKD (64%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$15,033 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1558597869. Listed at 16 retailers as of November 1, 2026, with a 176% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle37.85°
Pavilion angle39.39°
OriginNatural
Grading LabGIA
CertificateGIA 1558597869
Dimensions8.02 × 4.10 × 2.60 mm
L/W Ratio1.96
Girdle conditionFaceted
Key to symbols
Cloud, Twinning Wisp
Top View
8.02 mm4.10 mm0.50 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1558597869
Side View
Table 59.0%Crown 37.85°Girdle: THK-VTKPavilion 39.39°Culet: NoneDepth 63.5%

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 1
Current: HK$15,033 HKD|Low: HK$4,017 HKD|High: HK$15,496 HKD|Avg: HK$7,032 HKD|-3.0%
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 16HK$4,017 HKD
Retailer 4HK$4,417 HKD
Retailer 3HK$4,697 HKD
Retailer 6HK$4,929 HKD
Retailer 7HK$5,014 HKD
Retailer 13HK$5,163 HKD
Retailer 14HK$5,163 HKD
Retailer 2HK$5,444 HKD
Retailer 5HK$5,532 HKD
Retailer 9HK$5,885 HKD
Retailer 15HK$6,551 HKD
Retailer 10HK$7,069 HKD
Retailer 12HK$7,400 HKD
Retailer 8HK$7,432 HKD
Retailer 11HK$11,071 HKD
NZ JewellersHK$15,033 HKD

38 data points across 16 retailers

16 retailersHK$4,017 HKD to HK$11,071 HKD

B+
Cheapest Retailer
-
HK$4,017 HKD
B+
Retailer 2
-
HK$4,417 HKD
$563 USD
View
Final sale: no returns
B+
Retailer 3
-
HK$4,697 HKD
SGD 809 SGD
View
B+
Retailer 4
-
HK$4,929 HKD
SGD 849 SGD
View
B+
Retailer 5
-
HK$5,014 HKD
$639 USD
View
B+
Retailer 6
-
HK$5,163 HKD
$658 USD
View
B+
Retailer 7
-
HK$5,163 HKD
$658 USD
View
B
Retailer 8
-
HK$5,444 HKD
£546 GBP
View
B
Retailer 9
-
HK$5,532 HKD
$705 USD
View
B
Retailer 10
-
HK$5,885 HKD
£591 GBP
View
B
Retailer 11
-
HK$6,551 HKD
$835 USD
View
B
Retailer 12
-
HK$7,069 HKD
€858 EUR
View
B
Retailer 13
-
HK$7,400 HKD
ZAR 15,236 ZAR
View
Retailer 14
-
HK$7,432 HKD
A$1,457 AUD
View
Price last confirmed 30 days ago
B
Retailer 15
-
HK$11,071 HKD
£1,111 GBP
View
Most Expensive
NZ Jewellers
853c07dd-cc0c-4a75-b049-7a17799a9cf8 · Nov 3
HK$15,033 HKD
$1,916 USD
View
Price under review
15 more retailers have this diamond
Prices start from HK$4,017 HKDSave up to HK$7,053 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$4,017 HKD