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Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6505375298

Certificate GIA 6505375298

Diamond specifications and retailer prices

From HK$3,224 HKD
As of November 5, 2026
Save HK$10,575 HKD (77%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$13,800 HKD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6505375298. Listed at 19 retailers as of November 4, 2026, with prices from HK$3,224 to HK$13,800, a HK$10,575 spread on the same certified stone. NZ Jewellers lists it at HK$13,800. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6505375298
Dimensions5.08 × 5.06 × 3.17 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
5.08 mm5.06 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6505375298
Side View
Table 57.0%Crown 35°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: HK$13,800 HKD|Low: HK$3,224 HKD|High: HK$13,800 HKD|Avg: HK$6,993 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3HK$3,224 HKD
Retailer 7HK$4,433 HKD
Retailer 2HK$4,582 HKD
Retailer 5HK$5,311 HKD
Retailer 4HK$5,884 HKD
Retailer 9HK$5,923 HKD
Retailer 6HK$6,786 HKD
Retailer 8HK$10,152 HKD
NZ JewellersHK$13,800 HKD

38 data points across 9 retailers

19 retailersHK$3,224 HKD to HK$13,800 HKD

A
Cheapest Retailer
-
HK$3,224 HKD
B+
Retailer 2
-
HK$4,166 HKD
View
B+
Retailer 3
-
HK$4,401 HKD
View
Retailer 4
-
HK$4,401 HKD
View
Price last confirmed 43 days ago
B+
Retailer 5
-
HK$4,433 HKD
View
B+
Retailer 6
-
HK$4,582 HKD
View
Retailer 7
-
HK$4,739 HKD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
HK$4,739 HKD
View
B+
Retailer 9
-
HK$5,076 HKD
View
Retailer 10
-
HK$5,076 HKD
View
Price last confirmed 45 days ago
B+
Retailer 11
-
HK$5,311 HKD
View
B
Retailer 12
-
HK$5,429 HKD
View
B
Retailer 13
-
HK$5,774 HKD
View
B+
Retailer 14
-
HK$5,884 HKD
View
B
Retailer 15
-
HK$5,923 HKD
View
B
Retailer 16
-
HK$6,786 HKD
View
B
Retailer 17
-
HK$10,152 HKD
View
Retailer 18
-
HK$13,800 HKD
View
Price last confirmed 43 days ago
Most Expensive
B
NZ Jewellers
405abf71-43c0-4f79-85d8-3369ef7c483a · Nov 4
HK$13,800 HKD
$1,759 USD
View
18 more retailers have this diamond
Prices start from HK$3,224 HKDSave up to HK$10,575 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 Round
HK$3,224 HKD