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Marquise|Natural|GIA

0.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 5566202579

Certificate GIA 5566202579

Diamond specifications and retailer prices

From HK$4,358 HKD
As of November 6, 2026
Save HK$10,439 HKD (71%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$14,797 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566202579. Listed at 16 retailers as of November 5, 2026, with prices from HK$4,358 to HK$14,797, a HK$10,439 spread on the same certified stone. NZ Jewellers lists it at HK$14,797. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566202579
Dimensions8.01 × 4.19 × 2.39 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal
Top View
8.01 mm4.19 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566202579
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 57.1%

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$14,797 HKD|Low: HK$4,358 HKD|High: HK$15,016 HKD|Avg: HK$6,553 HKD|-1.5%
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
November 6, 2026
Retailer 5HK$4,358 HKD
Retailer 7HK$4,467 HKD
Retailer 11HK$4,718 HKD
Retailer 3HK$4,820 HKD
Retailer 13HK$5,079 HKD
Retailer 4HK$5,086 HKD
Retailer 15HK$5,447 HKD
Retailer 10HK$5,737 HKD
Retailer 8HK$5,745 HKD
Retailer 2HK$5,753 HKD
Retailer 6HK$6,231 HKD
Retailer 9HK$6,936 HKD
Retailer 12HK$7,281 HKD
Retailer 14HK$10,878 HKD
NZ JewellersHK$14,797 HKD

25 data points across 15 retailers

16 retailersHK$4,358 HKD to HK$14,797 HKD

A
Cheapest Retailer
-
HK$4,358 HKD
Final sale: no returns
A
Retailer 2
-
HK$4,467 HKD
View
A
Retailer 3
-
HK$4,718 HKD
View
Retailer 4
-
HK$4,820 HKD
View
Price last confirmed 9 days ago
A
Retailer 5
-
HK$5,079 HKD
View
Retailer 6
-
HK$5,086 HKD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
HK$5,447 HKD
View
B+
Retailer 8
-
HK$5,737 HKD
View
B+
Retailer 9
-
HK$5,745 HKD
View
B+
Retailer 10
-
HK$5,753 HKD
View
B
Retailer 11
-
HK$6,231 HKD
View
B+
Retailer 12
-
HK$6,936 HKD
View
B+
Retailer 13
-
HK$7,281 HKD
View
Retailer 14
-
HK$7,336 HKD
View
Price last confirmed 32 days ago
B
Retailer 15
-
HK$10,878 HKD
View
Most Expensive
B
NZ Jewellers
5f9e60fc-e73c-476b-a924-7d86aaa3e94e · Nov 5
HK$14,797 HKD
$1,888 USD
View
15 more retailers have this diamond
Prices start from HK$4,358 HKDSave up to HK$10,439 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$4,358 HKD