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Marquise|Natural|GIA

0.50ct E SI1 Marquise Natural Diamond

ID • E/SI1 • GIA 3545398580

Certificate GIA 3545398580

Diamond specifications and retailer prices

From HK$5,868 HKD
As of November 4, 2026
Save HK$7,955 HKD (58%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: HK$23,677 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 3545398580. Listed at 23 retailers as of November 2, 2026, with a 136% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 3545398580
Dimensions8.10 × 4.15 × 2.57 mm
L/W Ratio1.95
Top View
8.10 mm4.15 mm0.50 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3545398580
Side View
Table 58.0%CrownGirdle: VTN-THKPavilion 40.6°Culet: NoneDepth 62.0%

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 4
Current: HK$23,677 HKD|Low: HK$5,868 HKD|High: HK$23,677 HKD|Avg: HK$10,633 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9HK$5,868 HKD
Retailer 5HK$6,574 HKD
Retailer 3HK$6,841 HKD
Retailer 11HK$7,100 HKD
Retailer 8HK$8,120 HKD
Retailer 4HK$8,747 HKD
Retailer 2HK$10,567 HKD
Retailer 10HK$11,352 HKD
Retailer 6HK$11,650 HKD
Retailer 7HK$13,823 HKD
NZ JewellersHK$23,677 HKD

45 data points across 11 retailers

23 retailersHK$5,868 HKD to HK$13,823 HKD

A
Cheapest Retailer
-
HK$5,868 HKD
Final sale: no returns
A
Retailer 2
-
HK$6,315 HKD
View
A
Retailer 3
-
HK$6,574 HKD
View
B+
Retailer 4
-
HK$6,715 HKD
View
B+
Retailer 5
-
HK$6,786 HKD
View
B+
Retailer 6
-
HK$6,841 HKD
View
Retailer 7
-
HK$6,841 HKD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
HK$6,857 HKD
View
B+
Retailer 9
-
HK$6,919 HKD
View
B+
Retailer 10
-
HK$7,100 HKD
View
B+
Retailer 11
-
HK$7,633 HKD
View
B+
Retailer 12
-
HK$7,892 HKD
View
B
Retailer 13
-
HK$8,120 HKD
View
B+
Retailer 14
-
HK$8,481 HKD
View
B+
Retailer 15
-
HK$8,747 HKD
View
B
Retailer 16
-
HK$9,304 HKD
View
B
Retailer 17
-
HK$10,050 HKD
View
B
Retailer 18
-
HK$10,567 HKD
View
Retailer 19
-
HK$11,352 HKD
View
Price last confirmed 33 days ago
B
Retailer 20
-
HK$11,650 HKD
View
B
Retailer 21
-
HK$12,207 HKD
View
B
Retailer 22
-
HK$13,823 HKD
View
Most Expensive
NZ Jewellers
ecb8af5a-ce34-49cf-9bbe-67104c100532 · Nov 5
HK$23,677 HKD
$3,018 USD
View
Price under review
22 more retailers have this diamond
Prices start from HK$5,868 HKDSave up to HK$7,955 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$5,868 HKD