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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 $1,576 SGD
As of November 1, 2026
Save $1,851 SGD (54%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,428 SGD 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 $1,576 to $3,428, a $1,851 spread on the same certified stone. MOH London lists it at $3,428. 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
Colour
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: $3,428 SGD|Low: $1,576 SGD|High: $4,128 SGD|Avg: $2,700 SGD|-16.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4$1,576 SGD
Retailer 3$2,203 SGD
Retailer 2$2,534 SGD
MOH London$3,428 SGD

42 data points across 4 retailers

4 retailers$1,576 SGD to $3,428 SGD

B+
Cheapest Retailer
-
$1,576 SGD
B
Retailer 2
-
$2,203 SGD
View
B
Retailer 3
-
$2,534 SGD
View
Most Expensive
C
MOH London
D96C8C3E5 · Nov 4
$3,428 SGD
£2,106 GBP
View
3 more retailers have this diamond
Prices start from $1,576 SGDSave up to $1,851 SGD

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
$1,576 SGD