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Round|Natural|GIA

1.21ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 3545917764

Certificate GIA 3545917764

Diamond specifications and retailer prices

From $5,471 NZD
As of November 4, 2026
Save $5,547 NZD (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $11,018 NZD 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 $5,471 to $11,018, a $5,547 spread on the same certified stone. NZ Jewellers lists it at $11,018. 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
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $6,568 NZD|Low: $4,854 NZD|High: $10,576 NZD|Avg: $6,247 NZD|+13.2%
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$4,854 NZD
Retailer 3$4,917 NZD
Retailer 13$5,471 NZD
Retailer 4$5,646 NZD
Retailer 12$5,657 NZD
Retailer 5$5,673 NZD
Retailer 7$5,688 NZD
Retailer 15$5,913 NZD
Retailer 11$6,287 NZD
Retailer 14$6,287 NZD
Retailer 1$6,568 NZD
Retailer 6$6,799 NZD
Retailer 8$6,972 NZD
Retailer 10$9,220 NZD
Retailer 9$10,547 NZD

25 data points across 15 retailers

15 retailers$5,471 NZD to $11,018 NZD

A
Cheapest Retailer
-
$5,471 NZD
Retailer 2
-
$5,646 NZD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$5,657 NZD
View
Retailer 4
-
$5,673 NZD
View
Price last confirmed 40 days ago
Retailer 5
-
$5,892 NZD
View
Price last confirmed 39 days ago
B+
Retailer 6
-
$5,913 NZD
View
B+
Retailer 7
-
$6,287 NZD
View
B+
Retailer 8
-
$6,287 NZD
View
Retailer 9
-
$6,546 NZD
View
Price last confirmed 39 days ago
B+
Retailer 10
-
$6,568 NZD
View
B+
Retailer 11
-
$6,972 NZD
View
B
Retailer 12
-
$9,220 NZD
View
Retailer 13
-
$9,884 NZD
View
Price last confirmed 40 days ago
B
Retailer 14
-
$10,547 NZD
View
Most Expensive
B
NZ Jewellers
cb97fc63-3e39-4e23-8bc3-dea6d76b86ca · Nov 5
$11,018 NZD
$6,108 USD
View
14 more retailers have this diamond
Prices start from $5,471 NZDSave up to $5,547 NZD

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
$5,471 NZD