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Radiant|Natural|GIA

1.00ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 1428672363

Certificate GIA 1428672363

Diamond specifications and retailer prices

From $3,548 NZD
As of November 6, 2026
Save $2,901 NZD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,449 NZD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1428672363. Listed at 11 retailers as of November 6, 2026, with prices from $3,548 to $6,449, a $2,901 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,449. 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
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1428672363
Dimensions6.56 × 5.11 × 3.41 mm
L/W Ratio1.28
Culet sizeNone
Top View
6.56 mm5.11 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1428672363
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.7%

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: $5,233 NZD|Low: $3,225 NZD|High: $5,415 NZD|Avg: $4,413 NZD|+3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3$3,548 NZD
Retailer 4$3,586 NZD
Retailer 5$4,398 NZD
Retailer 6$4,432 NZD
Retailer 1$5,233 NZD
Retailer 2$5,361 NZD

39 data points across 6 retailers

11 retailers$3,548 NZD to $6,449 NZD

B+
Cheapest Retailer
-
$3,548 NZD
Final sale: no returns
B+
Retailer 2
-
$3,586 NZD
View
B+
Retailer 3
-
$3,651 NZD
View
B
Retailer 4
-
$3,824 NZD
View
B
Retailer 5
-
$4,398 NZD
View
B
Retailer 6
-
$4,398 NZD
View
B
Retailer 7
-
$4,432 NZD
View
B
Retailer 8
-
$5,233 NZD
View
B
Retailer 9
-
$5,361 NZD
View
B
Retailer 10
-
$5,423 NZD
View
Most Expensive
B
Wholesale Diamonds Direct
217369813 · Nov 6
$6,449 NZD
$3,575 USD
View
10 more retailers have this diamond
Prices start from $3,548 NZDSave up to $2,901 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 Radiant
$3,548 NZD