Radiant|Natural|GIA

1.21ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 3515698616

Certificate GIA 3515698616

Diamond specifications and retailer prices

From $4,176 USD
As of November 5, 2026
Save $4,665 USD (53%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,841 USD 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 3515698616. Listed at 19 retailers as of November 5, 2026, with prices from $4,176 to $8,841, a $4,665 spread on the same certified stone. NZ Jewellers lists it at $8,841. 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle32.8°
OriginNatural
Grading LabGIA
CertificateGIA 3515698616
Dimensions7.18 × 5.31 × 3.52 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
7.18 mm5.31 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3515698616
Side View
Table 67.0%CrownGirdle: STK-THKPavilion 32.8°Culet: NDepth 66.3%

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: $8,841 USD|Low: $4,457 USD|High: $8,841 USD|Avg: $5,801 USD
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
November 7, 2026
Retailer 3$4,457 USD
Retailer 5$4,515 USD
Retailer 4$4,789 USD
Retailer 12$4,789 USD
Retailer 13$4,789 USD
Retailer 8$5,224 USD
Retailer 11$5,329 USD
Retailer 6$5,624 USD
Retailer 9$5,949 USD
Retailer 10$6,449 USD
Retailer 2$6,612 USD
Retailer 7$8,374 USD
NZ Jewellers$8,841 USD

45 data points across 13 retailers

19 retailers$4,176 USD to $8,841 USD

B+
Cheapest Retailer
-
$4,176 USD
B
Retailer 2
-
$4,457 USD
View
B
Retailer 3
-
$4,515 USD
View
B
Retailer 4
-
$4,523 USD
View
B
Retailer 5
-
$4,789 USD
View
B
Retailer 6
-
$4,789 USD
View
Retailer 7
-
$4,789 USD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$5,218 USD
View
B
Retailer 9
-
$5,224 USD
View
Retailer 10
-
$5,329 USD
View
Price last confirmed 29 days ago
B
Retailer 11
-
$5,526 USD
View
Retailer 12
-
$5,624 USD
View
Retailer 13
-
$5,834 USD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$5,949 USD
View
B
Retailer 15
-
$5,966 USD
View
B
Retailer 16
-
$6,449 USD
View
Retailer 17
-
$6,612 USD
View
B
Retailer 18
-
$8,374 USD
View
Most Expensive
B
NZ Jewellers
e84a75b7-a070-4130-8530-22d294cb9c05 · Nov 5
$8,841 USD
View
18 more retailers have this diamond
Prices start from $4,176 USDSave up to $4,665 USD

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
$4,176 USD