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Round|Natural|GIA

0.50ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 5553958574

Certificate GIA 5553958574

Diamond specifications and retailer prices

From HK$2,095 HKD
As of November 5, 2026
Save HK$4,550 HKD (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$13,007 HKD at NZ Jewellers · As of October 6, 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 5553958574. Listed at 9 retailers as of November 2, 2026, with a 217% 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5553958574
Dimensions5.08 × 5.11 × 3.15 mm
L/W Ratio1.01
Girdle conditionMedium to Slightly Thick
Key to symbols
Crystal, Cavity
Top View
5.08 mm5.11 mm0.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553958574
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.8%

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 5
Current: HK$3,052 HKD|Low: HK$2,095 HKD|High: HK$7,908 HKD|Avg: HK$4,126 HKD|-14.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 3HK$2,095 HKD
Retailer 6HK$2,510 HKD
Retailer 1HK$3,052 HKD
Retailer 7HK$3,397 HKD
Retailer 2HK$4,723 HKD
Retailer 4HK$5,005 HKD
Retailer 5HK$6,645 HKD

40 data points across 7 retailers

9 retailersHK$2,095 HKD to HK$6,645 HKD

A
Cheapest Retailer
-
HK$2,095 HKD
A
Retailer 2
-
HK$2,510 HKD
View
A
Retailer 3
-
HK$3,052 HKD
View
Retailer 4
-
HK$3,303 HKD
View
Price last confirmed 38 days ago
Retailer 5
-
HK$3,397 HKD
View
Price last confirmed 30 days ago
B+
Retailer 6
-
HK$4,723 HKD
View
B+
Retailer 7
-
HK$5,005 HKD
View
B
Retailer 8
-
HK$6,645 HKD
View
Most Expensive
NZ Jewellers
08755ef6-4acd-4248-92f6-dcc8886bc2a6 · Oct 6
HK$13,007 HKD
$1,658 USD
View
Price last confirmed 31 days ago
8 more retailers have this diamond
Prices start from HK$2,095 HKDSave up to HK$4,550 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$2,095 HKD