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Radiant|Natural|GIA

1.00ct J SI1 Radiant Natural Diamond

GD • J/SI1 • GIA 2557319194

Certificate GIA 2557319194

Diamond specifications and retailer prices

From $1,725 NZD
As of November 6, 2026
Save $3,996 NZD (70%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $5,720 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2557319194. Listed at 17 retailers as of November 5, 2026, with prices from $1,725 to $5,720, a $3,996 spread on the same certified stone. NZ Jewellers lists it at $5,720. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557319194
Dimensions6.75 × 5.13 × 3.58 mm
L/W Ratio1.32
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
6.75 mm5.13 mm1.00 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557319194
Side View
Table 69.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 69.7%

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: $5,720 NZD|Low: $1,725 NZD|High: $5,913 NZD|Avg: $2,871 NZD|-3.3%
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
November 7, 2026
Retailer 12$1,725 NZD
Retailer 11$2,148 NZD
Retailer 8$2,192 NZD
Retailer 13$2,249 NZD
Retailer 4$2,345 NZD
Retailer 7$2,385 NZD
Retailer 10$2,408 NZD
Retailer 6$2,567 NZD
Retailer 14$2,589 NZD
Retailer 9$2,621 NZD
Retailer 3$2,675 NZD
Retailer 5$2,861 NZD
Retailer 15$3,222 NZD
Retailer 2$4,223 NZD
NZ Jewellers$5,720 NZD

16 data points across 15 retailers

17 retailers$1,725 NZD to $5,720 NZD

A
Cheapest Retailer
-
$1,725 NZD
B+
Retailer 2
-
$2,148 NZD
View
B+
Retailer 3
-
$2,192 NZD
View
B+
Retailer 4
-
$2,249 NZD
View
B+
Retailer 5
-
$2,345 NZD
View
Retailer 6
-
$2,385 NZD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$2,408 NZD
View
B+
Retailer 8
-
$2,567 NZD
View
B+
Retailer 9
-
$2,589 NZD
View
B+
Retailer 10
-
$2,621 NZD
View
B+
Retailer 11
-
$2,675 NZD
View
B+
Retailer 12
-
$2,852 NZD
View
B+
Retailer 13
-
$2,861 NZD
View
Retailer 14
-
$3,065 NZD
View
Price last confirmed 34 days ago
B+
Retailer 15
-
$3,222 NZD
View
B
Retailer 16
-
$4,223 NZD
View
Most Expensive
B
NZ Jewellers
d434b20b-ed23-45c4-9d50-843a31c5c7dc · Nov 5
$5,720 NZD
$3,171 USD
View
16 more retailers have this diamond
Prices start from $1,725 NZDSave up to $3,996 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.

A
1.00ct Radiant
$1,725 NZD