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Round|Natural|GIA

0.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2557722338

Certificate GIA 2557722338

Diamond specifications and retailer prices

From HK$3,644 HKD
As of November 6, 2026
Save HK$12,767 HKD (78%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$16,412 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 2557722338. Listed at 20 retailers as of November 4, 2026, with prices from HK$3,644 to HK$16,412, a HK$12,767 spread on the same certified stone. NZ Jewellers lists it at HK$16,412. 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 angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557722338
Dimensions5.06 × 5.09 × 3.18 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
5.06 mm5.09 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557722338
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.6%

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$6,732 HKD|Low: HK$3,644 HKD|High: HK$12,226 HKD|Avg: HK$7,326 HKD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7HK$3,644 HKD
Retailer 6HK$6,231 HKD
Retailer 2HK$6,356 HKD
Retailer 1HK$6,732 HKD
Retailer 3HK$6,952 HKD
Retailer 8HK$7,861 HKD
Retailer 4HK$8,073 HKD
Retailer 5HK$12,070 HKD

38 data points across 8 retailers

20 retailersHK$3,644 HKD to HK$16,412 HKD

A
Cheapest Retailer
-
HK$3,644 HKD
Final sale: no returns
A
Retailer 2
-
HK$4,742 HKD
View
A
Retailer 3
-
HK$4,891 HKD
View
A
Retailer 4
-
HK$4,938 HKD
View
Retailer 5
-
HK$5,102 HKD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
HK$5,102 HKD
View
B+
Retailer 7
-
HK$5,471 HKD
View
B+
Retailer 8
-
HK$5,612 HKD
View
B+
Retailer 9
-
HK$5,792 HKD
View
B
Retailer 10
-
HK$6,231 HKD
View
B+
Retailer 11
-
HK$6,254 HKD
View
B+
Retailer 12
-
HK$6,356 HKD
View
B+
Retailer 13
-
HK$6,623 HKD
View
B+
Retailer 14
-
HK$6,732 HKD
View
B+
Retailer 15
-
HK$6,952 HKD
View
Retailer 16
-
HK$7,861 HKD
View
Price last confirmed 33 days ago
B
Retailer 17
-
HK$8,073 HKD
View
B
Retailer 18
-
HK$12,070 HKD
View
B
Retailer 19
-
HK$15,016 HKD
View
Most Expensive
B
NZ Jewellers
c7a7a72c-47a7-450f-9917-1a85d6288ba6 · Nov 4
HK$16,412 HKD
$2,094 USD
View
19 more retailers have this diamond
Prices start from HK$3,644 HKDSave up to HK$12,767 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$3,644 HKD