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Radiant|Natural|HRD

1.21ct G SI2 Radiant Natural Diamond

ID • G/SI2 • HRD 260000167176

Certificate HRD 260000167176

Diamond specifications and retailer prices

From $2,506 AUD
$1,760 USD
As of October 31, 2026
Save $1,846 AUD (42%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $6,089 AUD at NZ Jewellers · As of September 27, 2026
View at NZ Jewellers

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded G 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 260000167176. Listed at 7 retailers as of October 31, 2026, with a 74% 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

1.21
Carat
G
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle51.64°
Pavilion angle37°
OriginNatural
Grading LabHRD
CertificateHRD 260000167176
Dimensions7.02 × 5.48 × 3.64 mm
L/W Ratio1.28
Girdle conditionMedium
Top View
7.02 mm5.48 mm1.21 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 260000167176
Side View
Table 72.0%Crown 51.64°GirdlePavilion 37°CuletDepth 66.4%

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: Oct 31
Current: $4,352 AUD|Low: $2,506 AUD|High: $4,426 AUD|Avg: $3,456 AUD|-0.5%
Retailer 1
Retailer 2
November 1, 2026
Retailer 2$2,506 AUD
Retailer 1$4,352 AUD

12 data points across 2 retailers

7 retailers$2,506 AUD to $4,352 AUD

Retailer 1
-
$2,497 AUD
$1,754 USD
Price last confirmed 37 days ago
Retailer 2
-
$2,497 AUD
$1,754 USD
View
Price last confirmed 26 days ago
A
Retailer 3
-
$2,506 AUD
$1,760 USD
View
Retailer 4
-
$2,611 AUD
$1,834 USD
View
Price last confirmed 32 days ago
B+
Retailer 5
-
$4,352 AUD
£2,407 GBP
View
Retailer 6
-
$6,089 AUD
$4,277 USD
View
Price last confirmed 26 days ago
Most Expensive
NZ Jewellers
63b4e64e-2825-4fbb-b1ef-e9fa6e631781 · Sep 27
$6,089 AUD
$4,277 USD
View
Price last confirmed 35 days ago
6 more retailers have this diamond
Prices start from $2,506 AUDSave up to $1,846 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
1.21ct Radiant
$2,506 AUD