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Round|Natural|GIA

1.00ct J SI2 Round Natural Diamond

VG • J/SI2 • GIA 2376502456

Certificate GIA 2376502456

Diamond specifications and retailer prices

From $1,318 USD
As of November 6, 2026
Save $3,000 USD (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,318 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 very-good cut grade and certified by GIA 2376502456. Listed at 16 retailers as of November 5, 2026, with prices from $1,318 to $4,318, a $3,000 spread on the same certified stone. NZ Jewellers lists it at $4,318. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
J
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2376502456
Dimensions6.25 × 6.16 × 4.01 mm
L/W Ratio1.01
Top View
6.25 mm6.16 mm1.00 ctJ / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2376502456
Side View
Table 56.0%CrownGirdle: ThickPavilionCulet: NoneDepth 64.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,318 USD|Low: $1,305 USD|High: $4,318 USD|Avg: $2,071 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 13$1,318 USD
Retailer 4$1,633 USD
Retailer 2$1,694 USD
Retailer 5$1,727 USD
Retailer 14$1,771 USD
Retailer 16$1,771 USD
Retailer 7$1,777 USD
Retailer 8$1,790 USD
Retailer 9$1,824 USD
Retailer 15$1,852 USD
Retailer 6$1,907 USD
Retailer 10$1,954 USD
Retailer 3$2,043 USD
Retailer 12$2,410 USD
Retailer 11$3,093 USD
NZ Jewellers$4,318 USD

33 data points across 16 retailers

16 retailers$1,318 USD to $4,318 USD

B+
Cheapest Retailer
-
$1,318 USD
B+
Retailer 2
-
$1,613 USD
View
B+
Retailer 3
-
$1,633 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,694 USD
View
B+
Retailer 5
-
$1,727 USD
View
B+
Retailer 6
-
$1,771 USD
View
Retailer 7
-
$1,771 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$1,790 USD
View
B+
Retailer 9
-
$1,824 USD
View
B+
Retailer 10
-
$1,852 USD
View
B+
Retailer 11
-
$1,907 USD
View
B+
Retailer 12
-
$1,954 USD
View
B
Retailer 13
-
$2,043 USD
View
B
Retailer 14
-
$2,410 USD
View
B
Retailer 15
-
$3,093 USD
View
Most Expensive
C
NZ Jewellers
66cb5fbe-961a-4616-86bd-8bb85dd0d4aa · Nov 5
$4,318 USD
View
15 more retailers have this diamond
Prices start from $1,318 USDSave up to $3,000 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.

B+
1.00ct Round
$1,318 USD