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Round|Natural|GIA

1.21ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6565141930

Certificate GIA 6565141930

Diamond specifications and retailer prices

From $3,360 CAD
As of November 5, 2026
Save $4,229 CAD (56%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,589 CAD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565141930. Listed at 11 retailers as of November 2, 2026, with prices from $3,360 to $7,589, a $4,229 spread on the same certified stone. NZ Jewellers lists it at $7,589. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6565141930
Dimensions6.74 × 6.78 × 4.25 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
6.74 mm6.78 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565141930
Side View
Table 57.0%Crown 35.5°GirdlePavilion 41°Culet: NoneDepth 62.9%

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 5
Current: $7,589 CAD|Low: $3,310 CAD|High: $7,589 CAD|Avg: $4,223 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 4$3,360 CAD
Retailer 6$3,444 CAD
Retailer 10$3,492 CAD
Retailer 5$3,561 CAD
Retailer 11$3,561 CAD
Retailer 9$3,630 CAD
Retailer 8$3,797 CAD
Retailer 2$4,077 CAD
Retailer 3$4,077 CAD
Retailer 7$6,360 CAD
NZ Jewellers$7,589 CAD

36 data points across 11 retailers

11 retailers$3,360 CAD to $7,589 CAD

B+
Cheapest Retailer
-
$3,360 CAD
B+
Retailer 2
-
$3,444 CAD
View
B+
Retailer 3
-
$3,492 CAD
View
B+
Retailer 4
-
$3,561 CAD
View
B+
Retailer 5
-
$3,561 CAD
View
B+
Retailer 6
-
$3,630 CAD
View
B+
Retailer 7
-
$3,797 CAD
View
B
Retailer 8
-
$4,077 CAD
View
Retailer 9
-
$4,077 CAD
View
Price last confirmed 30 days ago
B
Retailer 10
-
$6,360 CAD
View
Most Expensive
B
NZ Jewellers
1e048ddf-3410-4771-8ee9-77380c909214 · Nov 2
$7,589 CAD
$5,434 USD
View
10 more retailers have this diamond
Prices start from $3,360 CADSave up to $4,229 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 Round
$3,360 CAD