CaratHunter
Plans
Marquise|Natural|GIA

0.50ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 6551565624

Certificate GIA 6551565624

Diamond specifications and retailer prices

From HK$6,025 HKD
$768 USD
As of October 30, 2026
Save HK$7,735 HKD (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$23,443 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551565624. Listed at 17 retailers as of October 29, 2026, with a 128% 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle35°
OriginNatural
Grading LabGIA
CertificateGIA 6551565624
Dimensions7.81 × 4.11 × 2.64 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Crystal
Top View
7.81 mm4.11 mm0.50 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551565624
Side View
Table 55.0%Crown 38°Girdle: STK-VTKPavilion 35°Culet: NoneDepth 64.1%

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: Oct 30
Current: HK$23,443 HKD|Low: HK$6,025 HKD|High: HK$23,443 HKD|Avg: HK$8,964 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
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 5HK$6,025 HKD
Retailer 4HK$6,826 HKD
Retailer 10HK$6,868 HKD
Retailer 11HK$6,889 HKD
Retailer 13HK$7,477 HKD
Retailer 15HK$7,477 HKD
Retailer 16HK$7,548 HKD
Retailer 8HK$7,712 HKD
Retailer 12HK$7,759 HKD
Retailer 6HK$8,269 HKD
Retailer 3HK$8,521 HKD
Retailer 14HK$8,622 HKD
Retailer 2HK$8,752 HKD
Retailer 7HK$11,643 HKD
Retailer 9HK$13,760 HKD
NZ JewellersHK$23,443 HKD

43 data points across 16 retailers

17 retailersHK$6,025 HKD to HK$13,760 HKD

A
Cheapest Retailer
-
HK$6,025 HKD
$768 USD
B+
Retailer 2
-
HK$6,826 HKD
$870 USD
View
B+
Retailer 3
-
HK$6,868 HKD
SGD 1,183 SGD
View
B+
Retailer 4
-
HK$6,889 HKD
$878 USD
View
Final sale: no returns
Retailer 5
-
HK$7,477 HKD
$953 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
HK$7,477 HKD
$953 USD
View
B+
Retailer 7
-
HK$7,477 HKD
$953 USD
View
B+
Retailer 8
-
HK$7,548 HKD
$962 USD
View
B+
Retailer 9
-
HK$7,759 HKD
$989 USD
View
B+
Retailer 10
-
HK$8,521 HKD
$1,086 USD
View
Retailer 11
-
HK$8,622 HKD
$1,099 USD
View
Price last confirmed 32 days ago
B+
Retailer 12
-
HK$8,622 HKD
$1,099 USD
View
B+
Retailer 13
-
HK$8,752 HKD
£878 GBP
View
Retailer 14
-
HK$8,811 HKD
$1,123 USD
View
Price last confirmed 54 days ago
B
Retailer 15
-
HK$13,760 HKD
£1,381 GBP
View
Retailer 16
-
HK$23,443 HKD
$2,988 USD
View
Price under review
Most Expensive
NZ Jewellers
cf76177b-5519-4e93-bc6a-6d6d0e1547cf · Oct 30
HK$23,443 HKD
$2,988 USD
View
Price under review
16 more retailers have this diamond
Prices start from HK$6,025 HKDSave up to HK$7,735 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$6,025 HKD