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Radiant|Natural|GIA

1.20ct J SI1 Radiant Natural Diamond

EX • J/SI1 • GIA 2456032341

Certificate GIA 2456032341

Diamond specifications and retailer prices

From $4,280 AUD
As of November 6, 2026
Save $4,906 AUD (53%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,186 AUD 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2456032341. Listed at 11 retailers as of November 5, 2026, with prices from $4,280 to $9,186, a $4,906 spread on the same certified stone. NZ Jewellers lists it at $9,186. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2456032341
Dimensions7.16 × 5.46 × 3.30 mm
L/W Ratio1.31
Top View
7.16 mm5.46 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2456032341
Side View
Table 69.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.6%

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: $5,509 AUD|Low: $4,410 AUD|High: $8,923 AUD|Avg: $6,050 AUD|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 5$4,410 AUD
Retailer 2$5,114 AUD
Retailer 1$5,509 AUD
Retailer 3$5,849 AUD
Retailer 4$8,818 AUD

42 data points across 5 retailers

11 retailers$4,280 AUD to $9,186 AUD

B+
Cheapest Retailer
-
$4,280 AUD
B
Retailer 2
-
$4,410 AUD
View
Final sale: no returns
B
Retailer 3
-
$4,777 AUD
View
B
Retailer 4
-
$4,931 AUD
View
B
Retailer 5
-
$4,960 AUD
View
B
Retailer 6
-
$5,114 AUD
View
B
Retailer 7
-
$5,509 AUD
View
B
Retailer 8
-
$5,512 AUD
View
B
Retailer 9
-
$5,849 AUD
View
B
Retailer 10
-
$8,818 AUD
View
Most Expensive
B
NZ Jewellers
0003377b-c99c-4edd-985c-897e4d3d6e06 · Nov 5
$9,186 AUD
$6,312 USD
View
10 more retailers have this diamond
Prices start from $4,280 AUDSave up to $4,906 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.

B+
1.20ct Radiant
$4,280 AUD