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1.23ct J SI2 Round Natural Diamond

EX • J/SI2 • IGI 833602422

Shape and cutting style on the report: Round brilliant

Certificate IGI 833602422

Diamond specifications and retailer prices

From HK$8,598 HKD
As of November 6, 2026
Save HK$19,586 HKD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$28,183 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 833602422. Listed at 15 retailers as of November 5, 2026, with prices from HK$8,598 to HK$28,183, a HK$19,586 spread on the same certified stone. NZ Jewellers lists it at HK$28,183. 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

1.23
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.2°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 833602422
Dimensions6.83 × 6.89 × 4.18 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.83 mm6.89 mm1.23 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 833602422
Side View
Table 61.0%Crown 36.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.9%

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 6
Current: HK$28,183 HKD|Low: HK$8,598 HKD|High: HK$28,183 HKD|Avg: HK$13,601 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
November 6, 2026
Retailer 2HK$8,598 HKD
Retailer 3HK$10,659 HKD
Retailer 12HK$10,698 HKD
Retailer 6HK$10,706 HKD
Retailer 8HK$11,051 HKD
Retailer 7HK$11,552 HKD
Retailer 13HK$11,552 HKD
Retailer 4HK$12,046 HKD
Retailer 15HK$12,062 HKD
Retailer 14HK$12,085 HKD
Retailer 5HK$13,331 HKD
Retailer 10HK$13,535 HKD
Retailer 9HK$14,899 HKD
Retailer 11HK$20,181 HKD
NZ JewellersHK$28,183 HKD

41 data points across 15 retailers

15 retailersHK$8,598 HKD to HK$28,183 HKD

A
Cheapest Retailer
-
HK$8,598 HKD
A
Retailer 2
-
HK$10,659 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$10,698 HKD
View
A
Retailer 4
-
HK$10,706 HKD
View
A
Retailer 5
-
HK$11,051 HKD
View
Retailer 6
-
HK$11,552 HKD
View
Price last confirmed 9 days ago
A
Retailer 7
-
HK$11,552 HKD
View
B+
Retailer 8
-
HK$12,046 HKD
View
B+
Retailer 9
-
HK$12,062 HKD
View
B+
Retailer 10
-
HK$12,085 HKD
View
B+
Retailer 11
-
HK$13,331 HKD
View
A
Retailer 12
-
HK$13,535 HKD
View
A
Retailer 13
-
HK$14,899 HKD
View
B+
Retailer 14
-
HK$20,181 HKD
View
Most Expensive
B
NZ Jewellers
34ba6b30-4a1b-4995-bdf9-ad59beae8489 · Nov 5
HK$28,183 HKD
$3,596 USD
View
14 more retailers have this diamond
Prices start from HK$8,598 HKDSave up to HK$19,586 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
1.23ct Round
HK$8,598 HKD