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Marquise|Natural|GIA

0.50ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 2536185026

Certificate GIA 2536185026

Diamond specifications and retailer prices

From HK$5,039 HKD
As of November 5, 2026
Save HK$6,576 HKD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$15,800 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2536185026. Listed at 16 retailers as of November 4, 2026, with a 130% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.50
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2536185026
Dimensions8.75 × 4.01 × 2.50 mm
L/W Ratio2.18
Top View
8.75 mm4.01 mm0.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2536185026
Side View
Table 55.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: HK$6,145 HKD|Low: HK$5,094 HKD|High: HK$11,772 HKD|Avg: HK$7,147 HKD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 7HK$5,094 HKD
Retailer 2HK$5,235 HKD
Retailer 9HK$5,423 HKD
Retailer 3HK$6,137 HKD
Retailer 1HK$6,145 HKD
Retailer 6HK$6,505 HKD
Retailer 5HK$7,367 HKD
Retailer 8HK$7,571 HKD
Retailer 4HK$11,615 HKD

39 data points across 9 retailers

16 retailersHK$5,039 HKD to HK$11,615 HKD

B+
Cheapest Retailer
-
HK$5,039 HKD
B+
Retailer 2
-
HK$5,094 HKD
View
B+
Retailer 3
-
HK$5,235 HKD
View
Retailer 4
-
HK$5,423 HKD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
HK$5,423 HKD
View
Retailer 6
-
HK$5,815 HKD
View
Price last confirmed 60 days ago
B
Retailer 7
-
HK$5,815 HKD
View
B
Retailer 8
-
HK$5,949 HKD
View
B
Retailer 9
-
HK$6,066 HKD
View
B
Retailer 10
-
HK$6,137 HKD
View
B
Retailer 11
-
HK$6,145 HKD
View
B
Retailer 12
-
HK$6,505 HKD
View
B
Retailer 13
-
HK$7,367 HKD
View
Retailer 14
-
HK$7,571 HKD
View
Price last confirmed 32 days ago
B
Retailer 15
-
HK$11,615 HKD
View
Most Expensive
NZ Jewellers
17f14358-a33c-4d3b-91f6-048f1987f085 · Nov 5
HK$15,800 HKD
$2,016 USD
View
Price under review
15 more retailers have this diamond
Prices start from HK$5,039 HKDSave up to HK$6,576 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.

B+
0.50ct Marquise
HK$5,039 HKD