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Princess|Natural|IGI

1.21ct J SI1 Princess Natural Diamond

GD • J/SI1 • IGI 262780393

Shape and cutting style on the report: Princess cut

Certificate IGI 262780393

Diamond specifications and retailer prices

From $2,017 AUD
As of November 6, 2026
Save $1,770 AUD (47%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,787 AUD 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 262780393. Listed at 4 retailers as of November 4, 2026, with prices from $2,017 to $3,787, a $1,770 spread on the same certified stone. MOH London lists it at $3,787. 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
Crown angle48.7°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 262780393
Dimensions5.73 × 5.68 × 4.25 mm
L/W Ratio1.01
Culet sizePointed
Top View
5.73 mm5.68 mm1.21 ctJ / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI 262780393
Side View
Table 72.0%Crown 48.7°Girdle: THN-STKPavilion 40.2°Culet: NoneDepth 74.8%

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 6
Current: $3,787 AUD|Low: $2,017 AUD|High: $4,700 AUD|Avg: $3,084 AUD|-18.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 4$2,017 AUD
Retailer 3$2,313 AUD
Retailer 2$2,870 AUD
MOH London$3,787 AUD

38 data points across 4 retailers

4 retailers$2,017 AUD to $3,787 AUD

B+
Cheapest Retailer
-
$2,017 AUD
B+
Retailer 2
-
$2,313 AUD
View
B
Retailer 3
-
$2,870 AUD
View
Most Expensive
C
MOH London
C48AFFBAA · Nov 4
$3,787 AUD
£2,049 GBP
View
3 more retailers have this diamond
Prices start from $2,017 AUDSave up to $1,770 AUD

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
$2,017 AUD