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Princess|Natural|IGI

1.21ct J SI1 Princess Natural Diamond

GD • J/SI1 • IGI 450023233

Shape and cutting style on the report: Princess cut

Certificate IGI 450023233

Diamond specifications and retailer prices

From $1,730 CAD
As of November 1, 2026
Save $2,032 CAD (54%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,762 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural princess diamond

This 1.21ct natural princess sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI 450023233. Listed at 4 retailers as of November 1, 2026, with prices from $1,730 to $3,762, a $2,032 spread on the same certified stone. MOH London lists it at $3,762. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
J
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 450023233
Dimensions5.81 × 5.68 × 4.41 mm
L/W Ratio1.02
Culet sizeNone
Top View
5.81 mm5.68 mm1.21 ctJ / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI 450023233
Side View
Table 79.5%CrownGirdle: MED-THKPavilionCulet: NoneDepth 77.6%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $3,762 CAD|Low: $1,730 CAD|High: $4,530 CAD|Avg: $2,964 CAD|-16.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4$1,730 CAD
Retailer 3$2,418 CAD
Retailer 2$2,781 CAD
MOH London$3,762 CAD

42 data points across 4 retailers

4 retailers$1,730 CAD to $3,762 CAD

B+
Cheapest Retailer
-
$1,730 CAD
B
Retailer 2
-
$2,418 CAD
View
B
Retailer 3
-
$2,781 CAD
View
Most Expensive
C
MOH London
D96C8C3E5 · Nov 4
$3,762 CAD
£2,106 GBP
View
3 more retailers have this diamond
Prices start from $1,730 CADSave up to $2,032 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 Princess
$1,730 CAD