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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 2556995298

Certificate GIA 2556995298

Diamond specifications and retailer prices

From HK$4,715 HKD
As of November 6, 2026
Save HK$6,841 HKD (59%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$19,793 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 2556995298. Listed at 20 retailers as of November 2, 2026, with a 145% 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556995298
Dimensions7.67 × 4.30 × 2.55 mm
L/W Ratio1.78
Key to symbols
Twinning Wisp, Feather
Top View
7.67 mm4.30 mm0.50 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556995298
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.3%

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 6
Current: HK$19,793 HKD|Low: HK$4,613 HKD|High: HK$19,793 HKD|Avg: HK$7,949 HKD|+3.7%
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
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 18HK$4,715 HKD
Retailer 11HK$5,633 HKD
Retailer 6HK$5,821 HKD
Retailer 4HK$6,276 HKD
Retailer 3HK$6,308 HKD
Retailer 13HK$6,308 HKD
Retailer 8HK$6,402 HKD
Retailer 10HK$6,543 HKD
Retailer 15HK$6,551 HKD
Retailer 7HK$7,100 HKD
Retailer 19HK$7,280 HKD
Retailer 9HK$7,351 HKD
Retailer 12HK$7,516 HKD
Retailer 5HK$7,649 HKD
Retailer 2HK$7,704 HKD
Retailer 16HK$8,881 HKD
Retailer 14HK$9,736 HKD
Retailer 17HK$11,556 HKD
NZ JewellersHK$19,793 HKD

28 data points across 19 retailers

20 retailersHK$4,715 HKD to HK$11,556 HKD

A
Cheapest Retailer
-
HK$4,715 HKD
Retailer 2
-
HK$5,633 HKD
View
Price last confirmed 19 days ago
A
Retailer 3
-
HK$5,821 HKD
View
Final sale: no returns
Retailer 4
-
HK$6,276 HKD
View
Price last confirmed 9 days ago
Retailer 5
-
HK$6,308 HKD
View
Price last confirmed 8 days ago
A
Retailer 6
-
HK$6,308 HKD
View
B+
Retailer 7
-
HK$6,402 HKD
View
Retailer 8
-
HK$6,543 HKD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
HK$6,551 HKD
View
B+
Retailer 10
-
HK$7,100 HKD
View
B+
Retailer 11
-
HK$7,280 HKD
View
B+
Retailer 12
-
HK$7,351 HKD
View
B+
Retailer 13
-
HK$7,516 HKD
View
B+
Retailer 14
-
HK$7,649 HKD
View
B+
Retailer 15
-
HK$7,704 HKD
View
B+
Retailer 16
-
HK$8,881 HKD
View
B
Retailer 17
-
HK$9,736 HKD
View
Retailer 18
-
HK$9,822 HKD
View
Price last confirmed 32 days ago
B
Retailer 19
-
HK$11,556 HKD
View
Most Expensive
NZ Jewellers
5a7da615-2684-40e1-8c15-03793f6e4886 · Nov 5
HK$19,793 HKD
$2,523 USD
View
Price under review
19 more retailers have this diamond
Prices start from HK$4,715 HKDSave up to HK$6,841 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$4,715 HKD