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Radiant|Natural|GIA

1.00ct J SI1 Radiant Natural Diamond

VG • J/SI1 • GIA 2557969510

Certificate GIA 2557969510

Diamond specifications and retailer prices

From $2,158 AUD
As of November 4, 2026
Save $3,545 AUD (62%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,704 AUD at NZ Jewellers · As of November 3, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557969510. Listed at 13 retailers as of November 3, 2026, with prices from $2,158 to $5,704, a $3,545 spread on the same certified stone. NZ Jewellers lists it at $5,704. 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
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557969510
Dimensions6.67 × 4.95 × 3.52 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Key to symbols
Knot, Crystal, Pinpoint
Top View
6.67 mm4.95 mm1.00 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557969510
Side View
Table 66.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 71.1%

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 4
Current: $5,704 AUD|Low: $2,158 AUD|High: $5,859 AUD|Avg: $2,969 AUD|-2.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 4$2,158 AUD
Retailer 7$2,276 AUD
Retailer 10$2,339 AUD
Retailer 12$2,339 AUD
Retailer 3$2,447 AUD
Retailer 9$2,452 AUD
Retailer 5$2,594 AUD
Retailer 11$2,698 AUD
Retailer 2$2,854 AUD
Retailer 8$3,182 AUD
Retailer 6$4,085 AUD
NZ Jewellers$5,704 AUD

28 data points across 12 retailers

13 retailers$2,158 AUD to $5,704 AUD

A
Cheapest Retailer
-
$2,158 AUD
Final sale: no returns
A
Retailer 2
-
$2,276 AUD
View
B+
Retailer 3
-
$2,339 AUD
View
Retailer 4
-
$2,339 AUD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$2,447 AUD
View
B+
Retailer 6
-
$2,452 AUD
View
B+
Retailer 7
-
$2,594 AUD
View
B+
Retailer 8
-
$2,698 AUD
View
B+
Retailer 9
-
$2,854 AUD
View
Retailer 10
-
$3,133 AUD
View
Price last confirmed 33 days ago
B
Retailer 11
-
$3,182 AUD
View
B
Retailer 12
-
$4,085 AUD
View
Most Expensive
B
NZ Jewellers
7519b7ca-5f99-4651-a6d7-6de2b71c7dc2 · Nov 3
$5,704 AUD
$3,919 USD
View
12 more retailers have this diamond
Prices start from $2,158 AUDSave up to $3,545 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 Radiant
$2,158 AUD