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0.55ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 839658048

Shape and cutting style on the report: Round brilliant

Certificate IGI 839658048

Diamond specifications and retailer prices

From HK$3,480 HKD
As of November 6, 2026
Save HK$5,200 HKD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$8,679 HKD at MOH London · As of November 7, 2026
View at MOH London

About this 0.55ct natural round diamond

This 0.55ct 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 IGI 839658048. Listed at 14 retailers as of November 6, 2026, with prices from HK$3,480 to HK$8,679, a HK$5,200 spread on the same certified stone. MOH London lists it at HK$8,679. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 839658048
Dimensions5.20 × 5.24 × 3.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
5.20 mm5.24 mm0.55 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI 839658048
Side View
Table 59.0%Crown 35.9°Girdle: MED-STKPavilion 41.1°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 6
Current: HK$8,679 HKD|Low: HK$2,837 HKD|High: HK$8,968 HKD|Avg: HK$5,207 HKD|-3.2%
MOH London
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
November 7, 2026
Retailer 6HK$2,845 HKD
Retailer 4HK$3,480 HKD
Retailer 9HK$4,068 HKD
Retailer 14HK$4,068 HKD
Retailer 7HK$4,405 HKD
Retailer 11HK$4,773 HKD
Retailer 10HK$4,828 HKD
Retailer 8HK$4,891 HKD
Retailer 2HK$5,267 HKD
Retailer 3HK$5,369 HKD
Retailer 12HK$5,651 HKD
Retailer 5HK$5,784 HKD
Retailer 13HK$5,862 HKD
MOH LondonHK$8,679 HKD

19 data points across 14 retailers

14 retailersHK$3,480 HKD to HK$8,679 HKD

Retailer 1
-
HK$2,845 HKD
Price last confirmed 14 days ago
A
Retailer 2
-
HK$3,480 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$4,068 HKD
View
A
Retailer 4
-
HK$4,068 HKD
View
A
Retailer 5
-
HK$4,405 HKD
View
B+
Retailer 6
-
HK$4,773 HKD
View
A
Retailer 7
-
HK$4,828 HKD
View
A
Retailer 8
-
HK$4,891 HKD
View
B+
Retailer 9
-
HK$5,267 HKD
View
B+
Retailer 10
-
HK$5,369 HKD
View
B+
Retailer 11
-
HK$5,651 HKD
View
B+
Retailer 12
-
HK$5,784 HKD
View
B+
Retailer 13
-
HK$5,862 HKD
View
Most Expensive
B
MOH London
3ECBB47B5 · Nov 7
HK$8,679 HKD
£872 GBP
View
13 more retailers have this diamond
Prices start from HK$3,480 HKDSave up to HK$5,200 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$3,480 HKD