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Radiant|Natural|GIA

1.20ct J SI2 Radiant Natural Diamond

EX • J/SI2 • GIA 5242041299

Certificate GIA 5242041299

Diamond specifications and retailer prices

From $3,359 NZD
As of November 5, 2026
Save $4,833 NZD (59%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,192 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural radiant diamond

This 1.2ct 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 5242041299. Listed at 7 retailers as of November 5, 2026, with prices from $3,359 to $8,192, a $4,833 spread on the same certified stone. NZ Jewellers lists it at $8,192. 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

1.20
Carat
J
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle57.45°
OriginNatural
Grading LabGIA
CertificateGIA 5242041299
Dimensions6.99 × 5.28 × 3.68 mm
L/W Ratio1.32
Key to symbols
Crystal, Feather, Knot, Needle
Top View
6.99 mm5.28 mm1.20 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5242041299
Side View
Table 64.0%CrownGirdle: ThickPavilion 57.45°Culet: 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 5
Current: $8,192 NZD|Low: $3,359 NZD|High: $8,796 NZD|Avg: $5,057 NZD|+7.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 7$3,359 NZD
Retailer 4$3,384 NZD
Retailer 3$3,471 NZD
Retailer 6$3,961 NZD
Retailer 5$5,132 NZD
Retailer 2$5,780 NZD
NZ Jewellers$8,192 NZD

31 data points across 7 retailers

7 retailers$3,359 NZD to $8,192 NZD

A
Cheapest Retailer
-
$3,359 NZD
A
Retailer 2
-
$3,384 NZD
View
A
Retailer 3
-
$3,471 NZD
View
B+
Retailer 4
-
$3,961 NZD
View
B+
Retailer 5
-
$5,132 NZD
View
B
Retailer 6
-
$5,780 NZD
View
Most Expensive
B
NZ Jewellers
5f74f66d-002f-41ff-8926-7daef58a7c68 · Nov 5
$8,192 NZD
$4,541 USD
View
6 more retailers have this diamond
Prices start from $3,359 NZDSave up to $4,833 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
1.20ct Radiant
$3,359 NZD