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1.55ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 819632954

Shape and cutting style on the report: Round brilliant

Certificate IGI 819632954

Diamond specifications and retailer prices

From HK$26,436 HKD
As of November 4, 2026
Save HK$25,456 HKD (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$51,891 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 819632954. Listed at 16 retailers as of November 4, 2026, with prices from HK$26,436 to HK$51,891, a HK$25,456 spread on the same certified stone. NZ Jewellers lists it at HK$51,891. 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

1.55
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 819632954
Dimensions7.37 × 7.40 × 4.64 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
7.37 mm7.40 mm1.55 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 819632954
Side View
Table 57.0%Crown 33°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.8%

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 4
Current: HK$51,891 HKD|Low: HK$26,436 HKD|High: HK$54,548 HKD|Avg: HK$33,818 HKD
NZ Jewellers
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 7HK$26,436 HKD
Retailer 14HK$26,804 HKD
Retailer 5HK$27,494 HKD
Retailer 8HK$27,595 HKD
Retailer 4HK$28,489 HKD
Retailer 6HK$29,782 HKD
Retailer 16HK$29,782 HKD
Retailer 15HK$30,926 HKD
Retailer 9HK$31,201 HKD
Retailer 11HK$34,234 HKD
Retailer 3HK$34,367 HKD
Retailer 12HK$34,602 HKD
Retailer 2HK$35,378 HKD
Retailer 10HK$36,350 HKD
Retailer 13HK$49,673 HKD
NZ JewellersHK$51,891 HKD

36 data points across 16 retailers

16 retailersHK$26,436 HKD to HK$51,891 HKD

A
Cheapest Retailer
-
HK$26,436 HKD
A
Retailer 2
-
HK$26,804 HKD
View
A
Retailer 3
-
HK$27,494 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$27,595 HKD
View
A
Retailer 5
-
HK$28,489 HKD
View
B+
Retailer 6
-
HK$29,782 HKD
View
Retailer 7
-
HK$29,782 HKD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
HK$30,926 HKD
View
A
Retailer 9
-
HK$31,201 HKD
View
B+
Retailer 10
-
HK$34,234 HKD
View
B+
Retailer 11
-
HK$34,367 HKD
View
B+
Retailer 12
-
HK$34,602 HKD
View
B+
Retailer 13
-
HK$35,378 HKD
View
B+
Retailer 14
-
HK$36,350 HKD
View
B
Retailer 15
-
HK$49,673 HKD
View
Most Expensive
B
NZ Jewellers
e9241f48-9b2c-4d57-a740-646cbf1c56e5 · Nov 5
HK$51,891 HKD
$6,621 USD
View
15 more retailers have this diamond
Prices start from HK$26,436 HKDSave up to HK$25,456 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
1.55ct Round
HK$26,436 HKD