Round|Natural|IGI

1.55ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 536201745

Shape and cutting style on the report: Round brilliant

Certificate IGI 536201745

Diamond specifications and retailer prices

From HK$39,422 HKD
As of November 6, 2026
Save HK$35,264 HKD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$74,686 HKD at Allurez · As of November 5, 2026
View at Allurez

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 536201745. Listed at 15 retailers as of November 5, 2026, with prices from HK$39,422 to HK$74,686, a HK$35,264 spread on the same certified stone. Allurez lists it at HK$74,686. 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
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 536201745
Dimensions7.41 × 7.37 × 4.62 mm
L/W Ratio1.01
Culet sizePointed
Top View
7.41 mm7.37 mm1.55 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 536201745
Side View
Table 57.5%Crown 34.5°Girdle: MediumPavilion 41.4°Culet: NoneDepth 62.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: HK$74,686 HKD|Low: HK$21,623 HKD|High: HK$74,686 HKD|Avg: HK$29,239 HKD
Allurez
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 3, 2026
Retailer 12HK$23,120 HKD
Retailer 7HK$23,450 HKD
Retailer 14HK$23,591 HKD
Retailer 8HK$24,766 HKD
Retailer 4HK$25,566 HKD
Retailer 6HK$25,566 HKD
Retailer 16HK$26,545 HKD
Retailer 2HK$26,561 HKD
Retailer 3HK$29,492 HKD
Retailer 11HK$29,610 HKD
Retailer 10HK$29,735 HKD
Retailer 9HK$30,848 HKD
Retailer 15HK$30,895 HKD
Retailer 13HK$42,972 HKD
Retailer 5HK$44,532 HKD
AllurezHK$74,686 HKD

30 data points across 16 retailers

15 retailersHK$39,422 HKD to HK$74,686 HKD

Retailer 1
-
HK$23,120 HKD
Price last confirmed 19 days ago
Retailer 2
-
HK$23,450 HKD
View
Price last confirmed 14 days ago
Retailer 3
-
HK$24,766 HKD
View
Price last confirmed 14 days ago
Retailer 4
-
HK$25,566 HKD
View
Price last confirmed 21 days ago
Retailer 5
-
HK$25,566 HKD
View
Price last confirmed 15 days ago
Retailer 6
-
HK$26,545 HKD
View
Price last confirmed 15 days ago
Retailer 7
-
HK$26,561 HKD
View
Price last confirmed 14 days ago
Retailer 8
-
HK$26,686 HKD
View
Price last confirmed 19 days ago
Retailer 9
-
HK$29,492 HKD
View
Price last confirmed 14 days ago
Retailer 10
-
HK$29,610 HKD
View
Price last confirmed 14 days ago
Retailer 11
-
HK$30,848 HKD
View
Price last confirmed 15 days ago
B
Retailer 12
-
HK$39,422 HKD
View
Retailer 13
-
HK$42,972 HKD
View
Price last confirmed 16 days ago
Retailer 14
-
HK$44,532 HKD
View
Price last confirmed 17 days ago
Most Expensive
C
Allurez
5853908 · Nov 5
HK$74,686 HKD
$9,529 USD
View
14 more retailers have this diamond
Prices start from HK$39,422 HKDSave up to HK$35,264 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.

B
1.55ct Round
HK$39,422 HKD