Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 7428069875

Certificate GIA 7428069875

Diamond specifications and retailer prices

From $1,719 USD
As of November 4, 2026
Save $2,765 USD (62%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,484 USD 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 4, 2026, with prices from $1,719 to $4,484, a $2,765 spread on the same certified stone. NZ Jewellers lists it at $4,484. 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
Color
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 4
Current: $2,501 USD|Low: $1,540 USD|High: $3,803 USD|Avg: $2,316 USD|+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$1,719 USD
Retailer 9$1,755 USD
Retailer 6$1,793 USD
Retailer 7$2,033 USD
Retailer 4$2,240 USD
Retailer 3$2,316 USD
Retailer 1$2,501 USD
Retailer 2$2,720 USD
Retailer 5$3,757 USD

42 data points across 9 retailers

18 retailers$1,719 USD to $4,484 USD

A
Cheapest Retailer
-
$1,719 USD
B+
Retailer 2
-
$1,750 USD
View
B+
Retailer 3
-
$1,755 USD
View
B+
Retailer 4
-
$1,793 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,827 USD
View
B+
Retailer 6
-
$1,874 USD
View
B+
Retailer 7
-
$1,943 USD
View
Retailer 8
-
$1,943 USD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$2,033 USD
View
B
Retailer 10
-
$2,240 USD
View
B
Retailer 11
-
$2,242 USD
View
B+
Retailer 12
-
$2,316 USD
View
B
Retailer 13
-
$2,469 USD
View
B+
Retailer 14
-
$2,501 USD
View
B
Retailer 15
-
$2,720 USD
View
B
Retailer 16
-
$3,080 USD
View
B
Retailer 17
-
$3,757 USD
View
Most Expensive
B
NZ Jewellers
c5deb422-8764-4927-9c8c-61607f5a480d · Nov 5
$4,484 USD
View
17 more retailers have this diamond
Prices start from $1,719 USDSave up to $2,765 USD

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
$1,719 USD