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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 $2,345 NZD
As of November 6, 2026
Save $5,337 NZD (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,681 NZD 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 $2,345 to $7,681, a $5,337 spread on the same certified stone. NZ Jewellers lists it at $7,681. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $7,681 NZD|Low: $2,321 NZD|High: $7,681 NZD|Avg: $3,684 NZD
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$2,345 NZD
Retailer 4$2,905 NZD
Retailer 2$3,013 NZD
Retailer 5$3,072 NZD
Retailer 14$3,150 NZD
Retailer 16$3,150 NZD
Retailer 7$3,161 NZD
Retailer 8$3,184 NZD
Retailer 9$3,245 NZD
Retailer 15$3,295 NZD
Retailer 6$3,392 NZD
Retailer 10$3,476 NZD
Retailer 3$3,634 NZD
Retailer 12$4,287 NZD
Retailer 11$5,502 NZD
NZ Jewellers$7,681 NZD

33 data points across 16 retailers

16 retailers$2,345 NZD to $7,681 NZD

B+
Cheapest Retailer
-
$2,345 NZD
B+
Retailer 2
-
$2,869 NZD
View
B+
Retailer 3
-
$2,905 NZD
View
Final sale: no returns
B+
Retailer 4
-
$3,013 NZD
View
B+
Retailer 5
-
$3,072 NZD
View
B+
Retailer 6
-
$3,150 NZD
View
Retailer 7
-
$3,150 NZD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$3,184 NZD
View
B+
Retailer 9
-
$3,245 NZD
View
B+
Retailer 10
-
$3,295 NZD
View
B+
Retailer 11
-
$3,392 NZD
View
B+
Retailer 12
-
$3,476 NZD
View
B
Retailer 13
-
$3,634 NZD
View
B
Retailer 14
-
$4,287 NZD
View
B
Retailer 15
-
$5,502 NZD
View
Most Expensive
C
NZ Jewellers
66cb5fbe-961a-4616-86bd-8bb85dd0d4aa · Nov 5
$7,681 NZD
$4,318 USD
View
15 more retailers have this diamond
Prices start from $2,345 NZDSave up to $5,337 NZD

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
$2,345 NZD