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Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 7428069875

Certificate GIA 7428069875

Diamond specifications and retailer prices

From HK$13,486 HKD
As of November 6, 2026
Save HK$21,692 HKD (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$35,178 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct 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 GIA 7428069875. Listed at 18 retailers as of November 5, 2026, with prices from HK$13,486 to HK$35,178, a HK$21,692 spread on the same certified stone. NZ Jewellers lists it at HK$35,178. 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

1.00
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7428069875
Dimensions6.41 × 6.44 × 3.94 mm
L/W Ratio1.00
Top View
6.41 mm6.44 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7428069875
Side View
Table 62.0%Crown 34°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 61.3%

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 6
Current: HK$19,621 HKD|Low: HK$12,082 HKD|High: HK$29,835 HKD|Avg: HK$18,168 HKD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 8HK$13,486 HKD
Retailer 9HK$13,768 HKD
Retailer 6HK$14,066 HKD
Retailer 7HK$15,949 HKD
Retailer 4HK$17,573 HKD
Retailer 3HK$18,169 HKD
Retailer 1HK$19,621 HKD
Retailer 2HK$21,339 HKD
Retailer 5HK$29,474 HKD

42 data points across 9 retailers

18 retailersHK$13,486 HKD to HK$35,178 HKD

A
Cheapest Retailer
-
HK$13,486 HKD
B+
Retailer 2
-
HK$13,729 HKD
View
B+
Retailer 3
-
HK$13,768 HKD
View
B+
Retailer 4
-
HK$14,066 HKD
View
Final sale: no returns
B+
Retailer 5
-
HK$14,333 HKD
View
B+
Retailer 6
-
HK$14,702 HKD
View
B+
Retailer 7
-
HK$15,243 HKD
View
Retailer 8
-
HK$15,243 HKD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
HK$15,949 HKD
View
B
Retailer 10
-
HK$17,573 HKD
View
B
Retailer 11
-
HK$17,589 HKD
View
B+
Retailer 12
-
HK$18,169 HKD
View
B
Retailer 13
-
HK$19,370 HKD
View
B+
Retailer 14
-
HK$19,621 HKD
View
B
Retailer 15
-
HK$21,339 HKD
View
B
Retailer 16
-
HK$24,163 HKD
View
B
Retailer 17
-
HK$29,474 HKD
View
Most Expensive
B
NZ Jewellers
c5deb422-8764-4927-9c8c-61607f5a480d · Nov 5
HK$35,178 HKD
$4,484 USD
View
17 more retailers have this diamond
Prices start from HK$13,486 HKDSave up to HK$21,692 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
1.00ct Round
HK$13,486 HKD