Radiant|Natural|GIA

1.21ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 5241113102

Certificate GIA 5241113102

Diamond specifications and retailer prices

From $3,927 CAD
As of November 6, 2026
Save $4,507 CAD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,434 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 J 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 5241113102. Listed at 21 retailers as of November 5, 2026, with prices from $3,927 to $8,434, a $4,507 spread on the same certified stone. NZ Jewellers lists it at $8,434. 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
J
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5241113102
Dimensions7.40 × 5.19 × 3.64 mm
L/W Ratio1.43
Culet sizeNone
Top View
7.40 mm5.19 mm1.21 ctJ / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5241113102
Side View
Table 69.0%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: Nov 6
Current: $8,434 CAD|Low: $3,927 CAD|High: $8,434 CAD|Avg: $5,142 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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 7, 2026
Retailer 12$3,927 CAD
Retailer 10$4,020 CAD
Retailer 11$4,119 CAD
Retailer 7$4,262 CAD
Retailer 5$4,386 CAD
Retailer 9$4,386 CAD
Retailer 8$4,415 CAD
Retailer 6$4,555 CAD
Retailer 4$4,591 CAD
Retailer 15$4,695 CAD
Retailer 3$4,799 CAD
Retailer 16$4,826 CAD
Retailer 2$5,009 CAD
Retailer 20$5,060 CAD
Retailer 21$5,102 CAD
Retailer 17$5,633 CAD
Retailer 18$5,908 CAD
Retailer 13$6,122 CAD
Retailer 14$7,057 CAD
Retailer 19$8,074 CAD
NZ Jewellers$8,434 CAD

16 data points across 21 retailers

21 retailers$3,927 CAD to $8,434 CAD

B+
Cheapest Retailer
-
$3,927 CAD
B+
Retailer 2
-
$4,020 CAD
View
B
Retailer 3
-
$4,119 CAD
View
B
Retailer 4
-
$4,262 CAD
View
B
Retailer 5
-
$4,386 CAD
View
Retailer 6
-
$4,386 CAD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$4,415 CAD
View
B
Retailer 8
-
$4,555 CAD
View
B
Retailer 9
-
$4,591 CAD
View
B
Retailer 10
-
$4,695 CAD
View
B
Retailer 11
-
$4,799 CAD
View
B
Retailer 12
-
$4,826 CAD
View
B
Retailer 13
-
$5,009 CAD
View
B
Retailer 14
-
$5,060 CAD
View
B
Retailer 15
-
$5,102 CAD
View
B
Retailer 16
-
$5,633 CAD
View
B
Retailer 17
-
$5,908 CAD
View
B
Retailer 18
-
$6,122 CAD
View
B
Retailer 19
-
$7,057 CAD
View
B
Retailer 20
-
$8,074 CAD
View
Most Expensive
B
NZ Jewellers
b2e4fea6-1d79-4214-8cff-e134bc66ec8b · Nov 5
$8,434 CAD
$5,996 USD
View
20 more retailers have this diamond
Prices start from $3,927 CADSave up to $4,507 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
$3,927 CAD