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Marquise|Natural|GIA

0.50ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6555094150

Certificate GIA 6555094150

Diamond specifications and retailer prices

From HK$3,887 HKD
As of November 6, 2026
Save HK$9,515 HKD (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$15,906 HKD at MOH London · As of November 2, 2026
View at MOH London

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 6555094150. Listed at 15 retailers as of November 5, 2026, with a 245% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555094150
Dimensions7.74 × 4.17 × 2.63 mm
L/W Ratio1.86
Top View
7.74 mm4.17 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555094150
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.1%

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$15,906 HKD|Low: HK$3,684 HKD|High: HK$15,906 HKD|Avg: HK$7,029 HKD
MOH London
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
November 6, 2026
Retailer 2HK$3,887 HKD
Retailer 6HK$6,097 HKD
Retailer 7HK$7,038 HKD
Retailer 8HK$7,743 HKD
Retailer 4HK$7,751 HKD
Retailer 10HK$8,018 HKD
Retailer 13HK$8,684 HKD
Retailer 3HK$9,413 HKD
Retailer 14HK$9,758 HKD
Retailer 5HK$10,024 HKD
Retailer 11HK$10,659 HKD
Retailer 12HK$11,121 HKD
Retailer 9HK$13,402 HKD
MOH LondonHK$15,906 HKD

42 data points across 14 retailers

15 retailersHK$3,887 HKD to HK$13,402 HKD

A
Cheapest Retailer
-
HK$3,887 HKD
A
Retailer 2
-
HK$4,702 HKD
View
B+
Retailer 3
-
HK$6,097 HKD
View
B+
Retailer 4
-
HK$7,038 HKD
View
B
Retailer 5
-
HK$7,743 HKD
View
B
Retailer 6
-
HK$7,751 HKD
View
B
Retailer 7
-
HK$8,018 HKD
View
Final sale: no returns
B
Retailer 8
-
HK$8,684 HKD
View
B
Retailer 9
-
HK$9,413 HKD
View
B
Retailer 10
-
HK$9,758 HKD
View
B
Retailer 11
-
HK$10,024 HKD
View
B
Retailer 12
-
HK$10,659 HKD
View
B
Retailer 13
-
HK$11,121 HKD
View
C
Retailer 14
-
HK$13,402 HKD
View
Most Expensive
MOH London
14E2BB29A · Nov 2
HK$15,906 HKD
£1,598 GBP
View
Price under review
14 more retailers have this diamond
Prices start from HK$3,887 HKDSave up to HK$9,515 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$3,887 HKD