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Radiant|Natural|GIA

1.21ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 5526904201

Certificate GIA 5526904201

Diamond specifications and retailer prices

From $6,184 AUD
As of November 5, 2026
Save $6,906 AUD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $13,090 AUD at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5526904201. Listed at 20 retailers as of November 5, 2026, with prices from $6,184 to $13,090, a $6,906 spread on the same certified stone. NZ Jewellers lists it at $13,090. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle33.5°
OriginNatural
Grading LabGIA
CertificateGIA 5526904201
Dimensions7.12 × 5.27 × 3.52 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
7.12 mm5.27 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5526904201
Side View
Table 66.0%CrownGirdle: STK-THKPavilion 33.5°Culet: NDepth 66.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $13,090 AUD|Low: $5,455 AUD|High: $13,090 AUD|Avg: $8,410 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 7, 2026
Retailer 12$6,184 AUD
Retailer 13$6,546 AUD
Retailer 6$6,680 AUD
Retailer 3$7,091 AUD
Retailer 4$7,091 AUD
Retailer 5$7,091 AUD
Retailer 9$7,561 AUD
Retailer 14$7,890 AUD
Retailer 7$8,326 AUD
Retailer 10$8,807 AUD
Retailer 11$9,549 AUD
Retailer 2$9,785 AUD
Retailer 8$12,399 AUD
NZ Jewellers$13,090 AUD

45 data points across 14 retailers

20 retailers$6,184 AUD to $13,090 AUD

B+
Cheapest Retailer
-
$6,184 AUD
B
Retailer 2
-
$6,546 AUD
View
Final sale: no returns
B
Retailer 3
-
$6,600 AUD
View
B
Retailer 4
-
$6,645 AUD
View
B
Retailer 5
-
$6,680 AUD
View
B
Retailer 6
-
$7,091 AUD
View
B
Retailer 7
-
$7,091 AUD
View
Retailer 8
-
$7,091 AUD
View
Price last confirmed 9 days ago
B
Retailer 9
-
$7,561 AUD
View
B
Retailer 10
-
$7,727 AUD
View
Retailer 11
-
$7,890 AUD
View
Price last confirmed 29 days ago
B
Retailer 12
-
$8,181 AUD
View
Retailer 13
-
$8,326 AUD
View
Retailer 14
-
$8,638 AUD
View
Price last confirmed 15 days ago
B
Retailer 15
-
$8,807 AUD
View
B
Retailer 16
-
$8,834 AUD
View
B
Retailer 17
-
$9,549 AUD
View
Retailer 18
-
$9,785 AUD
View
B
Retailer 19
-
$12,399 AUD
View
Most Expensive
B
NZ Jewellers
3c3d90cd-a52c-4c09-96da-7034f867374f · Nov 5
$13,090 AUD
$8,994 USD
View
19 more retailers have this diamond
Prices start from $6,184 AUDSave up to $6,906 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
$6,184 AUD