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Radiant|Natural|GIA

1.21ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 2557742575

Certificate GIA 2557742575

Diamond specifications and retailer prices

From $2,628 CAD
As of November 6, 2026
Save $3,671 CAD (58%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,537 CAD at NZ Jewellers · As of October 11, 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 2557742575. Listed at 12 retailers as of November 4, 2026, with a 140% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557742575
Dimensions7.22 × 5.34 × 3.51 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
7.22 mm5.34 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557742575
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.7%

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: $7,537 CAD|Low: $2,611 CAD|High: $7,652 CAD|Avg: $4,162 CAD|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 9$2,628 CAD
Retailer 12$3,192 CAD
Retailer 11$3,327 CAD
Retailer 2$3,339 CAD
Retailer 5$3,545 CAD
Retailer 3$3,563 CAD
Retailer 6$3,660 CAD
Retailer 4$3,981 CAD
Retailer 7$4,254 CAD
Retailer 10$5,241 CAD
Retailer 8$6,299 CAD
NZ Jewellers$7,537 CAD

15 data points across 12 retailers

12 retailers$2,628 CAD to $6,299 CAD

A
Cheapest Retailer
-
$2,628 CAD
A
Retailer 2
-
$3,192 CAD
View
B+
Retailer 3
-
$3,327 CAD
View
Final sale: no returns
A
Retailer 4
-
$3,339 CAD
View
B+
Retailer 5
-
$3,545 CAD
View
B+
Retailer 6
-
$3,563 CAD
View
B+
Retailer 7
-
$3,660 CAD
View
B+
Retailer 8
-
$3,981 CAD
View
B+
Retailer 9
-
$4,254 CAD
View
B
Retailer 10
-
$5,241 CAD
View
B
Retailer 11
-
$6,299 CAD
View
Most Expensive
NZ Jewellers
538ffc4d-5d2d-4a9b-8e3d-4341c6573678 · Oct 11
$7,537 CAD
$5,358 USD
View
Price last confirmed 26 days ago
11 more retailers have this diamond
Prices start from $2,628 CADSave up to $3,671 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
$2,628 CAD