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Princess|Natural|IGI

1.21ct J SI1 Princess Natural Diamond

VG • J/SI1 • IGI 134

Certificate IGI 134

Diamond specifications and retailer prices

From $1,687 AUD
As of November 4, 2026
Save $271 AUD (14%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,958 AUD at B2C Jewels · As of November 6, 2026
View at B2C Jewels

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 very-good cut grade and certified by IGI. Listed at 2 retailers as of November 4, 2026, with prices from $1,687 to $1,958, a $271 spread on the same certified stone. B2C Jewels lists it at $1,958. 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
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 134
Dimensions5.73 × 5.64 mm
L/W Ratio1.02
Top View
5.73 mm5.64 mm1.21 ctJ / SI1
OriginNatural
CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI 134
Side View
Table 72.0%CrownGirdlePavilionCulet: NoneDepth 76.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: $1,958 AUD|Low: $1,687 AUD|High: $2,330 AUD|Avg: $1,956 AUD|-16.0%
B2C Jewels
Retailer 2
October 24, 2026
Retailer 2$1,687 AUD
B2C Jewels$1,958 AUD

4 data points across 2 retailers

2 retailers$1,687 AUD to $1,958 AUD

B+
Cheapest Retailer
-
$1,687 AUD
Most Expensive
B+
B2C Jewels
27896445 · Nov 6
$1,958 AUD
$1,345 USD
View
1 more retailer has this diamond
Prices start from $1,687 AUDSave up to $271 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
$1,687 AUD