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Radiant|Natural|GIA

1.21ct F I1 Radiant Natural Diamond

EX • F/I1 • GIA 2557139119

Certificate GIA 2557139119

Diamond specifications and retailer prices

From $3,914 AUD
$2,743 USD
As of October 29, 2026
Save $662 AUD (14%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,576 AUD at Yorxs · As of October 29, 2026
View at Yorxs

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded F colour (colourless) and I1 clarity (included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557139119. Listed at 5 retailers as of October 29, 2026, with prices from $3,914 to $4,576, a $662 spread on the same certified stone. Yorxs lists it at $4,576. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
I1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle49.65°
Pavilion angle36.04°
OriginNatural
Grading LabGIA
CertificateGIA 2557139119
Dimensions7.01 × 5.36 × 3.63 mm
L/W Ratio1.31
Top View
7.01 mm5.36 mm1.21 ctF / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2557139119
Side View
Table 70.0%Crown 49.65°GirdlePavilion 36.04°Culet: NoneDepth 67.6%

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: Oct 29
Current: $4,064 AUD|Low: $3,453 AUD|High: $4,576 AUD|Avg: $3,984 AUD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Yorxs
October 29, 2026
Retailer 6$3,453 AUD
Retailer 2$3,504 AUD
Retailer 4$3,914 AUD
Retailer 5$3,914 AUD
Retailer 1$4,064 AUD
Retailer 3$4,516 AUD
Yorxs$4,576 AUD

6 data points across 7 retailers

5 retailers$3,914 AUD to $4,576 AUD

Retailer 1
-
$3,504 AUD
$2,456 USD
Price last confirmed 7 days ago
B+
Retailer 2
-
$3,914 AUD
$2,743 USD
View
B+
Retailer 3
-
$4,064 AUD
$2,848 USD
View
Retailer 4
-
$4,516 AUD
$3,165 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Yorxs
9E87A0E04 · Oct 29
$4,576 AUD
€3,054 EUR
View
4 more retailers have this diamond
Prices start from $3,914 AUDSave up to $662 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+
1.21ct Radiant
$3,914 AUD