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Radiant|Natural|GIA

1.21ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 2556361020

Certificate GIA 2556361020

Diamond specifications and retailer prices

From $4,086 CAD
As of November 6, 2026
Save $5,331 CAD (57%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $9,417 CAD 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 E 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 2556361020. Listed at 24 retailers as of November 5, 2026, with prices from $4,086 to $9,417, a $5,331 spread on the same certified stone. NZ Jewellers lists it at $9,417. 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556361020
Dimensions7.05 × 5.43 × 3.73 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
7.05 mm5.43 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556361020
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

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 6
Current: $9,417 CAD|Low: $4,051 CAD|High: $9,790 CAD|Avg: $5,992 CAD|-3.8%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 7, 2026
Retailer 3$4,086 CAD
Retailer 16$4,235 CAD
Retailer 12$4,854 CAD
Retailer 7$4,874 CAD
Retailer 10$4,988 CAD
Retailer 21$5,089 CAD
Retailer 18$5,140 CAD
Retailer 2$5,197 CAD
Retailer 17$5,242 CAD
Retailer 6$5,406 CAD
Retailer 11$5,406 CAD
Retailer 13$5,474 CAD
Retailer 5$5,611 CAD
Retailer 9$5,612 CAD
Retailer 14$5,774 CAD
Retailer 8$6,237 CAD
Retailer 15$6,237 CAD
Retailer 19$6,292 CAD
Retailer 20$6,597 CAD
Retailer 22$9,039 CAD
Retailer 4$9,306 CAD
NZ Jewellers$9,417 CAD

21 data points across 22 retailers

24 retailers$4,086 CAD to $9,417 CAD

A
Cheapest Retailer
-
$4,086 CAD
A
Retailer 2
-
$4,235 CAD
View
B+
Retailer 3
-
$4,854 CAD
View
B+
Retailer 4
-
$4,874 CAD
View
B+
Retailer 5
-
$4,988 CAD
View
Final sale: no returns
B+
Retailer 6
-
$5,089 CAD
View
B+
Retailer 7
-
$5,140 CAD
View
B+
Retailer 8
-
$5,197 CAD
View
B+
Retailer 9
-
$5,242 CAD
View
B+
Retailer 10
-
$5,309 CAD
View
Retailer 11
-
$5,406 CAD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$5,406 CAD
View
B+
Retailer 13
-
$5,474 CAD
View
B+
Retailer 14
-
$5,602 CAD
View
B+
Retailer 15
-
$5,611 CAD
View
B+
Retailer 16
-
$5,612 CAD
View
B+
Retailer 17
-
$5,774 CAD
View
Retailer 18
-
$6,196 CAD
View
Price last confirmed 34 days ago
B+
Retailer 19
-
$6,237 CAD
View
B+
Retailer 20
-
$6,292 CAD
View
B+
Retailer 21
-
$6,597 CAD
View
B
Retailer 22
-
$9,039 CAD
View
Retailer 23
-
$9,306 CAD
View
Price last confirmed 10 days ago
Most Expensive
B
NZ Jewellers
85eed898-47ab-4f27-9696-efb97d0955f7 · Nov 5
$9,417 CAD
$6,695 USD
View
23 more retailers have this diamond
Prices start from $4,086 CADSave up to $5,331 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
$4,086 CAD