Round|Natural|GIA

1.21ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 3545917764

Certificate GIA 3545917764

Diamond specifications and retailer prices

From $3,033 USD
As of November 4, 2026
Save $3,075 USD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,108 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3545917764. Listed at 15 retailers as of November 4, 2026, with prices from $3,033 to $6,108, a $3,075 spread on the same certified stone. NZ Jewellers lists it at $6,108. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 3545917764
Dimensions6.79 × 6.84 × 4.22 mm
L/W Ratio1.01
Star length50%
Top View
6.79 mm6.84 mm1.21 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3545917764
Side View
Table 61.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.9%

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 4
Current: $3,641 USD|Low: $2,691 USD|High: $5,863 USD|Avg: $3,466 USD|+14.6%
Retailer 1
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
Retailer 15
November 6, 2026
Retailer 2$2,691 USD
Retailer 3$2,726 USD
Retailer 13$3,033 USD
Retailer 4$3,130 USD
Retailer 12$3,136 USD
Retailer 5$3,145 USD
Retailer 7$3,153 USD
Retailer 15$3,278 USD
Retailer 11$3,485 USD
Retailer 14$3,485 USD
Retailer 1$3,641 USD
Retailer 6$3,769 USD
Retailer 8$3,865 USD
Retailer 10$5,111 USD
Retailer 9$5,847 USD

26 data points across 15 retailers

15 retailers$3,033 USD to $6,108 USD

A
Cheapest Retailer
-
$3,033 USD
Retailer 2
-
$3,130 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$3,136 USD
View
Retailer 4
-
$3,145 USD
View
Price last confirmed 39 days ago
Retailer 5
-
$3,266 USD
View
Price last confirmed 38 days ago
B+
Retailer 6
-
$3,278 USD
View
B+
Retailer 7
-
$3,485 USD
View
B+
Retailer 8
-
$3,485 USD
View
Retailer 9
-
$3,629 USD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$3,641 USD
View
B+
Retailer 11
-
$3,865 USD
View
B
Retailer 12
-
$5,111 USD
View
Retailer 13
-
$5,479 USD
View
Price last confirmed 39 days ago
B
Retailer 14
-
$5,847 USD
View
Most Expensive
B
NZ Jewellers
cb97fc63-3e39-4e23-8bc3-dea6d76b86ca · Nov 5
$6,108 USD
View
14 more retailers have this diamond
Prices start from $3,033 USDSave up to $3,075 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.

A
1.21ct Round
$3,033 USD