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Radiant|Natural|GIA

1.21ct F SI2 Radiant Natural Diamond

ID • F/SI2 • GIA 1538184161

Certificate GIA 1538184161

Diamond specifications and retailer prices

From $3,464 AUD
As of November 2, 2026
Save $3,864 AUD (53%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,328 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 1538184161. Listed at 6 retailers as of November 2, 2026, with prices from $3,464 to $7,328, a $3,864 spread on the same certified stone. NZ Jewellers lists it at $7,328. 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
SymmetryExcellent
FluorescenceFaint
Crown angle48.74°
Pavilion angle31.51°
OriginNatural
Grading LabGIA
CertificateGIA 1538184161
Dimensions6.70 × 5.29 × 3.63 mm
L/W Ratio1.27
Girdle conditionVery Thick
Key to symbols
Cloud, Crystal, Feather, Cavity, Needle, Indented Natural
Top View
6.70 mm5.29 mm1.21 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1538184161
Side View
Table 66.0%Crown 48.74°Girdle: THK-VTKPavilion 31.51°Culet: NoneDepth 68.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $7,328 AUD|Low: $3,464 AUD|High: $7,383 AUD|Avg: $4,502 AUD|-0.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 4$3,464 AUD
Retailer 5$3,505 AUD
Retailer 3$3,666 AUD
Retailer 6$3,713 AUD
Retailer 9$3,876 AUD
Retailer 7$4,087 AUD
Retailer 8$4,360 AUD
Retailer 2$6,108 AUD
NZ Jewellers$7,328 AUD

29 data points across 9 retailers

6 retailers$3,464 AUD to $7,328 AUD

A
Cheapest Retailer
-
$3,464 AUD
A
Retailer 2
-
$3,505 AUD
View
A
Retailer 3
-
$3,666 AUD
View
A
Retailer 4
-
$3,713 AUD
View
B+
Retailer 5
-
$6,108 AUD
View
Most Expensive
B
NZ Jewellers
cc3a81c0-08de-4887-bf65-230260d48f34 · Nov 3
$7,328 AUD
$5,035 USD
View
5 more retailers have this diamond
Prices start from $3,464 AUDSave up to $3,864 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
$3,464 AUD