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Round|Natural|GIA

0.55ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1278625878

Certificate GIA 1278625878

Diamond specifications and retailer prices

From HK$4,668 HKD
As of November 4, 2026
Save HK$7,288 HKD (61%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$16,255 HKD at NZ Jewellers · As of November 4, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1278625878. Listed at 10 retailers as of November 4, 2026, with a 156% 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1278625878
Dimensions5.38 × 5.33 × 3.20 mm
L/W Ratio1.01
Star length55%
Lower girdle80%
Top View
5.38 mm5.33 mm0.55 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1278625878
Side View
Table 59.0%Crown 33.5°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 59.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: HK$16,255 HKD|Low: HK$4,668 HKD|High: HK$16,255 HKD|Avg: HK$7,509 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 4HK$4,668 HKD
Retailer 7HK$4,699 HKD
Retailer 6HK$5,060 HKD
Retailer 9HK$5,060 HKD
Retailer 8HK$5,421 HKD
Retailer 2HK$6,292 HKD
Retailer 3HK$7,029 HKD
Retailer 5HK$11,956 HKD
NZ JewellersHK$16,255 HKD

41 data points across 9 retailers

10 retailersHK$4,668 HKD to HK$11,956 HKD

A
Cheapest Retailer
-
HK$4,668 HKD
B+
Retailer 2
-
HK$4,699 HKD
View
B+
Retailer 3
-
HK$4,888 HKD
View
Retailer 4
-
HK$5,060 HKD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
HK$5,060 HKD
View
B+
Retailer 6
-
HK$5,421 HKD
View
B
Retailer 7
-
HK$6,292 HKD
View
B
Retailer 8
-
HK$7,029 HKD
View
B
Retailer 9
-
HK$11,956 HKD
View
Most Expensive
NZ Jewellers
72ebac5e-1a50-4e40-bc8d-c6e90c7a1f1b · Nov 4
HK$16,255 HKD
$2,072 USD
View
Price under review
9 more retailers have this diamond
Prices start from HK$4,668 HKDSave up to HK$7,288 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$4,668 HKD