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Round|Natural|GIA

0.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6551506419

Certificate GIA 6551506419

Diamond specifications and retailer prices

From HK$4,977 HKD
As of November 6, 2026
Save HK$5,996 HKD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$18,825 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551506419. Listed at 21 retailers as of November 4, 2026, with a 120% 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6551506419
Dimensions5.02 × 5.06 × 3.11 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather
Top View
5.02 mm5.06 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551506419
Side View
Table 61.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 61.7%

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$7,101 HKD|Low: HK$3,825 HKD|High: HK$11,121 HKD|Avg: HK$7,472 HKD|+4.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8HK$5,016 HKD
Retailer 10HK$5,651 HKD
Retailer 2HK$5,972 HKD
Retailer 7HK$6,858 HKD
Retailer 1HK$7,101 HKD
Retailer 3HK$7,610 HKD
Retailer 4HK$7,720 HKD
Retailer 9HK$9,021 HKD
Retailer 5HK$9,264 HKD
Retailer 6HK$10,972 HKD

45 data points across 10 retailers

21 retailersHK$4,977 HKD to HK$10,972 HKD

A
Cheapest Retailer
-
HK$4,977 HKD
B+
Retailer 2
-
HK$5,016 HKD
View
Final sale: no returns
Retailer 3
-
HK$5,337 HKD
View
Price last confirmed 26 days ago
Retailer 4
-
HK$5,439 HKD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
HK$5,439 HKD
View
B+
Retailer 6
-
HK$5,518 HKD
View
B+
Retailer 7
-
HK$5,651 HKD
View
B+
Retailer 8
-
HK$5,972 HKD
View
B+
Retailer 9
-
HK$6,278 HKD
View
B
Retailer 10
-
HK$6,858 HKD
View
B+
Retailer 11
-
HK$7,101 HKD
View
B+
Retailer 12
-
HK$7,218 HKD
View
B+
Retailer 13
-
HK$7,610 HKD
View
B+
Retailer 14
-
HK$7,720 HKD
View
B
Retailer 15
-
HK$8,378 HKD
View
B
Retailer 16
-
HK$8,402 HKD
View
Retailer 17
-
HK$9,021 HKD
View
Price last confirmed 32 days ago
B
Retailer 18
-
HK$9,264 HKD
View
B
Retailer 19
-
HK$10,972 HKD
View
Retailer 20
-
HK$17,328 HKD
View
Price under review
Most Expensive
NZ Jewellers
e0438737-15b9-4ae5-b609-315943596b88 · Nov 4
HK$18,825 HKD
$2,402 USD
View
Price under review
20 more retailers have this diamond
Prices start from HK$4,977 HKDSave up to HK$5,996 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$4,977 HKD