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Radiant|Natural|GIA

1.21ct F SI2 Radiant Natural Diamond

ID • F/SI2 • GIA 6535454075

Certificate GIA 6535454075

Diamond specifications and retailer prices

From $3,577 AUD
As of November 7, 2026
Save $4,448 AUD (55%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,025 AUD at NZ Jewellers · As of November 3, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6535454075. Listed at 7 retailers as of November 3, 2026, with prices from $3,577 to $8,025, a $4,448 spread on the same certified stone. NZ Jewellers lists it at $8,025. 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
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle44.59°
Pavilion angle30.55°
OriginNatural
Grading LabGIA
CertificateGIA 6535454075
Dimensions7.07 × 5.31 × 3.48 mm
L/W Ratio1.33
Top View
7.07 mm5.31 mm1.21 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6535454075
Side View
Table 69.0%Crown 44.59°Girdle: ThickPavilion 30.55°Culet: NoneDepth 65.6%

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 7
Current: $8,025 AUD|Low: $3,500 AUD|High: $8,152 AUD|Avg: $4,944 AUD|-1.6%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 7, 2026
Retailer 4$3,577 AUD
Retailer 5$3,794 AUD
Retailer 6$3,838 AUD
Retailer 3$3,986 AUD
Retailer 7$4,050 AUD
Retailer 2$6,689 AUD
NZ Jewellers$8,025 AUD

42 data points across 7 retailers

7 retailers$3,577 AUD to $8,025 AUD

A
Cheapest Retailer
-
$3,577 AUD
A
Retailer 2
-
$3,794 AUD
View
A
Retailer 3
-
$3,838 AUD
View
A
Retailer 4
-
$3,986 AUD
View
A
Retailer 5
-
$4,050 AUD
View
B
Retailer 6
-
$6,689 AUD
View
Most Expensive
B
NZ Jewellers
18e3931d-a2ec-49e6-b7f6-3e20b5d3d02a · Nov 3
$8,025 AUD
$5,514 USD
View
6 more retailers have this diamond
Prices start from $3,577 AUDSave up to $4,448 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
$3,577 AUD