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Round|Natural|GIA

1.21ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2231667421

Certificate GIA 2231667421

Diamond specifications and retailer prices

From $3,147 CAD
As of November 5, 2026
Save $5,599 CAD (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,746 CAD 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2231667421. Listed at 15 retailers as of November 5, 2026, with prices from $3,147 to $8,746, a $5,599 spread on the same certified stone. NZ Jewellers lists it at $8,746. 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
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2231667421
Dimensions6.83 × 6.86 × 4.25 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.83 mm6.86 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231667421
Side View
Table 55.0%Crown 35.5°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 62.1%

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 5
Current: $8,746 CAD|Low: $3,147 CAD|High: $8,746 CAD|Avg: $4,676 CAD
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
Retailer 15
November 6, 2026
Retailer 6$3,147 CAD
Retailer 7$3,674 CAD
Retailer 11$3,737 CAD
Retailer 4$4,145 CAD
Retailer 10$4,152 CAD
Retailer 12$4,152 CAD
Retailer 13$4,184 CAD
Retailer 5$4,371 CAD
Retailer 14$4,371 CAD
Retailer 2$4,445 CAD
Retailer 3$4,511 CAD
Retailer 8$4,605 CAD
Retailer 15$6,089 CAD
Retailer 9$6,977 CAD
NZ Jewellers$8,746 CAD

25 data points across 15 retailers

15 retailers$3,147 CAD to $8,746 CAD

A
Cheapest Retailer
-
$3,147 CAD
A
Retailer 2
-
$3,674 CAD
View
A
Retailer 3
-
$3,737 CAD
View
B+
Retailer 4
-
$4,145 CAD
View
B+
Retailer 5
-
$4,152 CAD
View
B+
Retailer 6
-
$4,152 CAD
View
B+
Retailer 7
-
$4,184 CAD
View
B+
Retailer 8
-
$4,371 CAD
View
B+
Retailer 9
-
$4,371 CAD
View
B+
Retailer 10
-
$4,445 CAD
View
B+
Retailer 11
-
$4,511 CAD
View
B+
Retailer 12
-
$4,605 CAD
View
B
Retailer 13
-
$6,089 CAD
View
B
Retailer 14
-
$6,977 CAD
View
Most Expensive
B
NZ Jewellers
c8614bb8-53af-487f-bd0f-6c8b45bb686f · Nov 5
$8,746 CAD
$6,262 USD
View
14 more retailers have this diamond
Prices start from $3,147 CADSave up to $5,599 CAD

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
$3,147 CAD