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Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6305896366

Certificate GIA 6305896366

Diamond specifications and retailer prices

From HK$10,042 HKD
As of November 6, 2026
Save HK$22,861 HKD (69%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$32,903 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 6305896366. Listed at 17 retailers as of November 5, 2026, with prices from HK$10,042 to HK$32,903, a HK$22,861 spread on the same certified stone. NZ Jewellers lists it at HK$32,903. 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
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6305896366
Dimensions6.40 × 6.34 × 3.94 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.40 mm6.34 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6305896366
Side View
Table 59.0%Crown 36°Girdle: ThickPavilion 40.6°Culet: NoneDepth 61.8%

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 6
Current: HK$12,905 HKD|Low: HK$9,940 HKD|High: HK$23,920 HKD|Avg: HK$14,390 HKD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9HK$10,042 HKD
Retailer 8HK$11,831 HKD
Retailer 2HK$12,293 HKD
Retailer 11HK$12,450 HKD
Retailer 10HK$12,631 HKD
Retailer 1HK$12,905 HKD
Retailer 4HK$14,012 HKD
Retailer 3HK$14,114 HKD
Retailer 6HK$14,882 HKD
Retailer 5HK$17,024 HKD
Retailer 7HK$23,567 HKD

41 data points across 11 retailers

17 retailersHK$10,042 HKD to HK$32,903 HKD

A
Cheapest Retailer
-
HK$10,042 HKD
A
Retailer 2
-
HK$11,831 HKD
View
A
Retailer 3
-
HK$12,293 HKD
View
A
Retailer 4
-
HK$12,450 HKD
View
Final sale: no returns
A
Retailer 5
-
HK$12,631 HKD
View
A
Retailer 6
-
HK$12,905 HKD
View
Retailer 7
-
HK$13,494 HKD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
HK$13,494 HKD
View
B+
Retailer 9
-
HK$14,012 HKD
View
B+
Retailer 10
-
HK$14,114 HKD
View
B+
Retailer 11
-
HK$14,231 HKD
View
B+
Retailer 12
-
HK$14,561 HKD
View
B+
Retailer 13
-
HK$14,882 HKD
View
B+
Retailer 14
-
HK$15,565 HKD
View
B+
Retailer 15
-
HK$17,024 HKD
View
B
Retailer 16
-
HK$23,567 HKD
View
Most Expensive
C
NZ Jewellers
184be088-16c0-4203-b2fc-8cb6bf618a2b · Nov 5
HK$32,903 HKD
$4,194 USD
View
16 more retailers have this diamond
Prices start from HK$10,042 HKDSave up to HK$22,861 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$10,042 HKD