CaratHunter
Plans
Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 7428069875

Certificate GIA 7428069875

Diamond specifications and retailer prices

From $2,456 AUD
As of November 6, 2026
Save $3,950 AUD (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $6,405 AUD 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 $2,456 to $6,405, a $3,950 spread on the same certified stone. NZ Jewellers lists it at $6,405. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $3,573 AUD|Low: $2,200 AUD|High: $5,433 AUD|Avg: $3,308 AUD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 8$2,456 AUD
Retailer 9$2,507 AUD
Retailer 6$2,561 AUD
Retailer 7$2,904 AUD
Retailer 4$3,200 AUD
Retailer 3$3,308 AUD
Retailer 1$3,573 AUD
Retailer 2$3,886 AUD
Retailer 5$5,367 AUD

42 data points across 9 retailers

18 retailers$2,456 AUD to $6,405 AUD

A
Cheapest Retailer
-
$2,456 AUD
B+
Retailer 2
-
$2,500 AUD
View
B+
Retailer 3
-
$2,507 AUD
View
B+
Retailer 4
-
$2,561 AUD
View
Final sale: no returns
B+
Retailer 5
-
$2,610 AUD
View
B+
Retailer 6
-
$2,677 AUD
View
B+
Retailer 7
-
$2,776 AUD
View
Retailer 8
-
$2,776 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$2,904 AUD
View
B
Retailer 10
-
$3,200 AUD
View
B
Retailer 11
-
$3,203 AUD
View
B+
Retailer 12
-
$3,308 AUD
View
B
Retailer 13
-
$3,527 AUD
View
B+
Retailer 14
-
$3,573 AUD
View
B
Retailer 15
-
$3,886 AUD
View
B
Retailer 16
-
$4,400 AUD
View
B
Retailer 17
-
$5,367 AUD
View
Most Expensive
B
NZ Jewellers
c5deb422-8764-4927-9c8c-61607f5a480d · Nov 5
$6,405 AUD
$4,484 USD
View
17 more retailers have this diamond
Prices start from $2,456 AUDSave up to $3,950 AUD

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
$2,456 AUD