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Marquise|Natural|GIA

0.50ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 1553255657

Certificate GIA 1553255657

Diamond specifications and retailer prices

From HK$5,045 HKD
$643 USD
As of November 2, 2026
Save HK$6,075 HKD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$18,940 HKD at NZ Jewellers · As of October 30, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1553255657. Listed at 14 retailers as of October 29, 2026, with a 120% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1553255657
Dimensions8.35 × 4.12 × 2.49 mm
L/W Ratio2.03
Key to symbols
Twinning Wisp
Top View
8.35 mm4.12 mm0.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553255657
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NDepth 60.3%

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$18,940 HKD|Low: HK$4,206 HKD|High: HK$18,940 HKD|Avg: HK$8,525 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
November 2, 2026
Retailer 9HK$5,045 HKD
Retailer 8HK$5,367 HKD
Retailer 5HK$5,469 HKD
Retailer 11HK$5,469 HKD
Retailer 10HK$5,681 HKD
Retailer 4HK$6,316 HKD
Retailer 3HK$6,732 HKD
Retailer 6HK$7,196 HKD
Retailer 13HK$7,810 HKD
Retailer 2HK$7,826 HKD
Retailer 7HK$11,120 HKD
Retailer 12HK$17,439 HKD
NZ JewellersHK$18,940 HKD

42 data points across 13 retailers

14 retailersHK$5,045 HKD to HK$11,120 HKD

A
Cheapest Retailer
-
HK$5,045 HKD
$643 USD
Final sale: no returns
B+
Retailer 2
-
HK$5,367 HKD
$684 USD
View
B+
Retailer 3
-
HK$5,469 HKD
$697 USD
View
B+
Retailer 4
-
HK$5,469 HKD
$697 USD
View
B+
Retailer 5
-
HK$5,586 HKD
$712 USD
View
B+
Retailer 6
-
HK$5,681 HKD
$724 USD
View
B+
Retailer 7
-
HK$6,316 HKD
$805 USD
View
B
Retailer 8
-
HK$6,732 HKD
$858 USD
View
B
Retailer 9
-
HK$7,196 HKD
£722 GBP
View
B
Retailer 10
-
HK$7,266 HKD
$926 USD
View
B
Retailer 11
-
HK$7,826 HKD
€950 EUR
View
B
Retailer 12
-
HK$11,120 HKD
£1,116 GBP
View
Retailer 13
-
HK$17,439 HKD
CA$3,087 CAD
View
Price under review
Most Expensive
NZ Jewellers
208f3f6d-ddf7-4dc5-bb3f-b01eab52b41a · Oct 30
HK$18,940 HKD
$2,414 USD
View
Price under review
13 more retailers have this diamond
Prices start from HK$5,045 HKDSave up to HK$6,075 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$5,045 HKD