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Round|Natural|GIA

0.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2225190395

Certificate GIA 2225190395

Diamond specifications and retailer prices

From HK$4,436 HKD
As of November 5, 2026
Save HK$8,073 HKD (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$15,048 HKD at NZ Jewellers · As of September 15, 2026
View at NZ Jewellers

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2225190395. Listed at 20 retailers as of November 5, 2026, with a 182% 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

0.55
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2225190395
Dimensions5.23 × 5.19 × 3.22 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Needle, Feather
Top View
5.23 mm5.19 mm0.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2225190395
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.1%

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$6,286 HKD|Low: HK$4,130 HKD|High: HK$11,419 HKD|Avg: HK$6,181 HKD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 15HK$4,436 HKD
Retailer 2HK$4,507 HKD
Retailer 13HK$4,859 HKD
Retailer 11HK$5,008 HKD
Retailer 3HK$5,267 HKD
Retailer 16HK$5,267 HKD
Retailer 6HK$5,917 HKD
Retailer 9HK$5,925 HKD
Retailer 4HK$5,956 HKD
Retailer 10HK$6,019 HKD
Retailer 1HK$6,286 HKD
Retailer 5HK$6,348 HKD
Retailer 7HK$6,646 HKD
Retailer 8HK$7,195 HKD
Retailer 12HK$7,540 HKD
Retailer 14HK$11,286 HKD

35 data points across 16 retailers

20 retailersHK$4,436 HKD to HK$12,508 HKD

A
Cheapest Retailer
-
HK$4,436 HKD
A
Retailer 2
-
HK$4,507 HKD
View
Final sale: no returns
Retailer 3
-
HK$4,796 HKD
View
Price last confirmed 53 days ago
A
Retailer 4
-
HK$4,859 HKD
View
A
Retailer 5
-
HK$5,008 HKD
View
Retailer 6
-
HK$5,267 HKD
View
Price last confirmed 12 days ago
Retailer 7
-
HK$5,267 HKD
View
Price last confirmed 9 days ago
Retailer 8
-
HK$5,533 HKD
View
Price last confirmed 53 days ago
B+
Retailer 9
-
HK$5,917 HKD
View
B+
Retailer 10
-
HK$5,925 HKD
View
B+
Retailer 11
-
HK$5,956 HKD
View
B+
Retailer 12
-
HK$6,019 HKD
View
B+
Retailer 13
-
HK$6,286 HKD
View
B+
Retailer 14
-
HK$6,348 HKD
View
B+
Retailer 15
-
HK$6,646 HKD
View
Retailer 16
-
HK$7,195 HKD
View
Price last confirmed 33 days ago
B+
Retailer 17
-
HK$7,540 HKD
View
B
Retailer 18
-
HK$11,286 HKD
View
B
Retailer 19
-
HK$12,508 HKD
View
Most Expensive
NZ Jewellers
03ddd43e-3800-4c6a-a3d6-3159a1065b64 · Sep 15
HK$15,048 HKD
$1,920 USD
View
Price last confirmed 52 days ago
19 more retailers have this diamond
Prices start from HK$4,436 HKDSave up to HK$8,073 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
0.55ct Round
HK$4,436 HKD