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Radiant|Natural|GIA

1.21ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 2558167281

Certificate GIA 2558167281

Diamond specifications and retailer prices

From $2,404 CAD
As of November 7, 2026
Save $3,698 CAD (61%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,102 CAD at NZ Jewellers · As of November 3, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558167281. Listed at 8 retailers as of November 3, 2026, with prices from $2,404 to $6,102, a $3,698 spread on the same certified stone. NZ Jewellers lists it at $6,102. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle54.67°
Pavilion angle36.44°
OriginNatural
Grading LabGIA
CertificateGIA 2558167281
Dimensions6.91 × 5.37 × 3.66 mm
L/W Ratio1.29
Top View
6.91 mm5.37 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2558167281
Side View
Table 71.0%Crown 54.67°Girdle: THK-VTKPavilion 36.44°Culet: NoneDepth 68.1%

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 7
Current: $6,102 CAD|Low: $2,317 CAD|High: $6,134 CAD|Avg: $3,282 CAD|-0.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 3$2,404 CAD
Retailer 5$2,473 CAD
Retailer 6$2,502 CAD
Retailer 8$2,546 CAD
Retailer 2$2,616 CAD
Retailer 7$2,684 CAD
Retailer 4$4,383 CAD
NZ Jewellers$6,102 CAD

42 data points across 8 retailers

8 retailers$2,404 CAD to $6,102 CAD

A
Cheapest Retailer
-
$2,404 CAD
A
Retailer 2
-
$2,473 CAD
View
A
Retailer 3
-
$2,502 CAD
View
Retailer 4
-
$2,546 CAD
View
Price last confirmed 35 days ago
A
Retailer 5
-
$2,616 CAD
View
A
Retailer 6
-
$2,684 CAD
View
B+
Retailer 7
-
$4,383 CAD
View
Most Expensive
B
NZ Jewellers
3c79699f-d26b-4fe2-bbdd-c507cc815fd3 · Nov 3
$6,102 CAD
$4,338 USD
View
7 more retailers have this diamond
Prices start from $2,404 CADSave up to $3,698 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 Radiant
$2,404 CAD