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1.03ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 825677309

Shape and cutting style on the report: Round brilliant

Certificate IGI 825677309

Diamond specifications and retailer prices

From HK$12,007 HKD
As of November 5, 2026
Save HK$20,119 HKD (63%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$32,126 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 825677309. Listed at 14 retailers as of November 5, 2026, with prices from HK$12,007 to HK$32,126, a HK$20,119 spread on the same certified stone. NZ Jewellers lists it at HK$32,126. 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

1.03
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 825677309
Dimensions6.43 × 6.46 × 4.02 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
6.43 mm6.46 mm1.03 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 825677309
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.3%

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 5
Current: HK$12,430 HKD|Low: HK$12,148 HKD|High: HK$23,348 HKD|Avg: HK$15,975 HKD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7HK$12,148 HKD
Retailer 1HK$12,430 HKD
Retailer 2HK$14,781 HKD
Retailer 3HK$15,322 HKD
Retailer 5HK$16,075 HKD
Retailer 4HK$17,846 HKD
Retailer 6HK$23,011 HKD

34 data points across 7 retailers

14 retailersHK$12,007 HKD to HK$32,126 HKD

A
Cheapest Retailer
-
HK$12,007 HKD
A
Retailer 2
-
HK$12,148 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$12,430 HKD
View
Retailer 4
-
HK$13,175 HKD
View
Price last confirmed 8 days ago
A
Retailer 5
-
HK$13,175 HKD
View
A
Retailer 6
-
HK$13,715 HKD
View
B+
Retailer 7
-
HK$13,778 HKD
View
B+
Retailer 8
-
HK$14,781 HKD
View
B+
Retailer 9
-
HK$15,197 HKD
View
B+
Retailer 10
-
HK$15,322 HKD
View
B+
Retailer 11
-
HK$16,075 HKD
View
B+
Retailer 12
-
HK$17,846 HKD
View
B
Retailer 13
-
HK$23,011 HKD
View
Most Expensive
B
NZ Jewellers
e61d0523-7643-42e5-af4a-3b1fe5f5a3ac · Nov 5
HK$32,126 HKD
$4,099 USD
View
13 more retailers have this diamond
Prices start from HK$12,007 HKDSave up to HK$20,119 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
1.03ct Round
HK$12,007 HKD