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Radiant|Natural|HRD

1.20ct J SI2 Radiant Natural Diamond

ID • J/SI2 • HRD 260000008490

Certificate HRD 260000008490

Diamond specifications and retailer prices

From $2,073 AUD
$1,453 USD
As of November 2, 2026
Save $1,884 AUD (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $5,999 AUD at NZ Jewellers · As of September 25, 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 HRD 260000008490. Listed at 9 retailers as of October 29, 2026, with a 91% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle34.7°
OriginNatural
Grading LabHRD
CertificateHRD 260000008490
Dimensions6.86 × 5.29 × 3.70 mm
L/W Ratio1.30
Girdle conditionPolished
Top View
6.86 mm5.29 mm1.20 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000008490
Side View
Table 67.0%CrownGirdle: MediumPavilion 34.7°Culet: NoneDepth 69.9%

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 2
Current: $2,911 AUD|Low: $1,841 AUD|High: $4,360 AUD|Avg: $2,684 AUD|-5.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9$1,908 AUD
Retailer 7$2,073 AUD
Retailer 3$2,187 AUD
Retailer 5$2,334 AUD
Retailer 6$2,354 AUD
Retailer 8$2,373 AUD
Retailer 1$2,911 AUD
Retailer 4$3,273 AUD
Retailer 2$3,958 AUD

20 data points across 9 retailers

9 retailers$2,073 AUD to $3,958 AUD

A
Cheapest Retailer
-
$2,073 AUD
$1,453 USD
Final sale: no returns
A
Retailer 2
-
$2,187 AUD
SGD 2,071 SGD
View
A
Retailer 3
-
$2,334 AUD
$1,636 USD
View
A
Retailer 4
-
$2,354 AUD
$1,650 USD
View
A
Retailer 5
-
$2,373 AUD
View
B+
Retailer 6
-
$2,911 AUD
€1,943 EUR
View
Retailer 7
-
$3,273 AUD
$2,294 USD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
$3,958 AUD
£2,184 GBP
View
Most Expensive
NZ Jewellers
6028c03c-c19c-4688-9f68-287673f424e6 · Sep 25
$5,999 AUD
$4,204 USD
View
Price last confirmed 38 days ago
8 more retailers have this diamond
Prices start from $2,073 AUDSave up to $1,884 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
1.20ct Radiant
$2,073 AUD