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Round|Natural|GIA

0.55ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6431478289

Certificate GIA 6431478289

Diamond specifications and retailer prices

From HK$3,907 HKD
As of November 5, 2026
Save HK$4,001 HKD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$13,384 HKD at NZ Jewellers · As of September 19, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6431478289. Listed at 13 retailers as of November 2, 2026, with a 102% 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6431478289
Dimensions5.26 × 5.23 × 3.26 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.26 mm5.23 mm0.55 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6431478289
Side View
Table 58.0%Crown 36.5°Girdle: MediumPavilion 41°Culet: NoneDepth 62.3%

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$13,133 HKD|Low: HK$3,271 HKD|High: HK$13,384 HKD|Avg: HK$5,566 HKD|-1.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 6HK$3,428 HKD
Retailer 8HK$3,844 HKD
Retailer 2HK$3,907 HKD
Retailer 4HK$4,189 HKD
Retailer 7HK$4,895 HKD
Retailer 9HK$5,037 HKD
Retailer 3HK$5,162 HKD
Retailer 5HK$7,908 HKD
NZ JewellersHK$13,133 HKD

40 data points across 9 retailers

13 retailersHK$3,907 HKD to HK$7,908 HKD

Retailer 1
-
HK$3,428 HKD
Price last confirmed 17 days ago
Retailer 2
-
HK$3,491 HKD
View
Price last confirmed 50 days ago
Retailer 3
-
HK$3,758 HKD
View
Price last confirmed 22 days ago
Retailer 4
-
HK$3,758 HKD
View
Price last confirmed 21 days ago
A
Retailer 5
-
HK$3,907 HKD
View
Retailer 6
-
HK$4,032 HKD
View
Price last confirmed 45 days ago
A
Retailer 7
-
HK$4,189 HKD
View
A
Retailer 8
-
HK$4,895 HKD
View
A
Retailer 9
-
HK$5,037 HKD
View
A
Retailer 10
-
HK$5,162 HKD
View
B+
Retailer 11
-
HK$7,908 HKD
View
Retailer 12
-
HK$13,133 HKD
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
d81b8347-16aa-44c2-adee-9164ef3bf060 · Sep 19
HK$13,384 HKD
$1,706 USD
View
Price last confirmed 47 days ago
12 more retailers have this diamond
Prices start from HK$3,907 HKDSave up to HK$4,001 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$3,907 HKD