Radiant|Natural|GIA

1.21ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 2231483721

Certificate GIA 2231483721

Diamond specifications and retailer prices

From $4,059 CAD
$2,906 USD
As of October 31, 2026
Save $4,470 CAD (52%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $8,529 CAD at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231483721. Listed at 15 retailers as of October 30, 2026, with prices from $4,059 to $8,529, a $4,470 spread on the same certified stone. NZ Jewellers lists it at $8,529. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2231483721
Dimensions6.94 × 5.28 × 3.69 mm
L/W Ratio1.31
Culet sizeNone
Top View
6.94 mm5.28 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2231483721
Side View
Table 68.0%CrownGirdle: VTK-VTKPavilionCulet: NoneDepth 70.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $8,529 CAD|Low: $4,059 CAD|High: $8,529 CAD|Avg: $5,401 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
Retailer 16
November 1, 2026
Retailer 3$4,059 CAD
Retailer 13$4,435 CAD
Retailer 15$4,435 CAD
Retailer 4$4,462 CAD
Retailer 14$4,606 CAD
Retailer 6$4,643 CAD
Retailer 5$4,855 CAD
Retailer 9$5,117 CAD
Retailer 11$5,118 CAD
Retailer 7$5,160 CAD
Retailer 16$5,548 CAD
Retailer 8$5,571 CAD
Retailer 12$5,732 CAD
Retailer 10$6,018 CAD
Retailer 2$8,187 CAD
NZ Jewellers$8,529 CAD

17 data points across 16 retailers

15 retailers$4,059 CAD to $8,529 CAD

B+
Cheapest Retailer
-
$4,059 CAD
$2,906 USD
B+
Retailer 2
-
$4,435 CAD
$3,175 USD
View
B+
Retailer 3
-
$4,435 CAD
$3,175 USD
View
B
Retailer 4
-
$4,462 CAD
$3,194 USD
View
B
Retailer 5
-
$4,606 CAD
$3,297 USD
View
B
Retailer 6
-
$4,643 CAD
$3,324 USD
View
B+
Retailer 7
-
$4,855 CAD
View
B
Retailer 8
-
$5,117 CAD
£2,884 GBP
View
B
Retailer 9
-
$5,118 CAD
$3,664 USD
View
B
Retailer 10
-
$5,160 CAD
$3,694 USD
View
Retailer 11
-
$5,548 CAD
$3,972 USD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$5,732 CAD
€3,908 EUR
View
B
Retailer 13
-
$6,018 CAD
ZAR 69,598 ZAR
View
B
Retailer 14
-
$8,187 CAD
£4,615 GBP
View
Most Expensive
B
NZ Jewellers
304b2cca-abd9-424a-9469-a079e08a804e · Oct 30
$8,529 CAD
$6,106 USD
View
14 more retailers have this diamond
Prices start from $4,059 CADSave up to $4,470 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.

B+
1.21ct Radiant
$4,059 CAD