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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2557165660

Certificate GIA 2557165660

Diamond specifications and retailer prices

From HK$4,574 HKD
As of November 6, 2026
Save HK$14,333 HKD (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$18,907 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557165660. Listed at 13 retailers as of November 5, 2026, with prices from HK$4,574 to HK$18,907, a HK$14,333 spread on the same certified stone. NZ Jewellers lists it at HK$18,907. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557165660
Dimensions8.53 × 4.10 × 2.47 mm
L/W Ratio2.08
Top View
8.53 mm4.10 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557165660
Side View
Table 58.0%CrownGirdle: UND-UNDPavilionCulet: NoneDepth 60.1%

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$4,574 HKD|Low: HK$4,574 HKD|High: HK$11,156 HKD|Avg: HK$6,942 HKD|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1HK$4,574 HKD
Retailer 7HK$5,562 HKD
Retailer 6HK$6,151 HKD
Retailer 3HK$6,174 HKD
Retailer 8HK$6,260 HKD
Retailer 2HK$7,194 HKD
Retailer 4HK$8,504 HKD
Retailer 5HK$11,038 HKD

37 data points across 8 retailers

13 retailersHK$4,574 HKD to HK$18,907 HKD

A
Cheapest Retailer
-
HK$4,574 HKD
A
Retailer 2
-
HK$5,562 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$6,033 HKD
View
A
Retailer 4
-
HK$6,151 HKD
View
A
Retailer 5
-
HK$6,174 HKD
View
A
Retailer 6
-
HK$6,237 HKD
View
A
Retailer 7
-
HK$6,260 HKD
View
B+
Retailer 8
-
HK$6,833 HKD
View
B+
Retailer 9
-
HK$6,959 HKD
View
B+
Retailer 10
-
HK$7,194 HKD
View
B+
Retailer 11
-
HK$8,504 HKD
View
B
Retailer 12
-
HK$11,038 HKD
View
Most Expensive
B
NZ Jewellers
0d6eefda-45c2-4910-8efa-370fbd0c370c · Nov 5
HK$18,907 HKD
$2,410 USD
View
12 more retailers have this diamond
Prices start from HK$4,574 HKDSave up to HK$14,333 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$4,574 HKD