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Princess|Natural|IGI

1.21ct J SI1 Princess Natural Diamond

GD • J/SI1 • IGI 81

Certificate IGI 81

Diamond specifications and retailer prices

From $1,661 SGD
As of November 4, 2026
Save $211 SGD (11%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,872 SGD 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 standard cut grade and certified by IGI. Listed at 2 retailers as of November 4, 2026, with a relatively tight 13% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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 81
Dimensions5.81 × 5.68 mm
L/W Ratio1.02
Top View
5.81 mm5.68 mm1.21 ctJ / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI 81
Side View
Table 80.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 77.6%

Caratlytics Score

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

Last verified: Nov 4
Current: $1,872 SGD|Low: $1,661 SGD|High: $2,157 SGD|Avg: $1,873 SGD|-13.2%
B2C Jewels
Retailer 2
October 24, 2026
Retailer 2$1,661 SGD
B2C Jewels$1,872 SGD

4 data points across 2 retailers

2 retailers$1,661 SGD to $1,872 SGD

B+
Cheapest Retailer
-
$1,661 SGD
Most Expensive
B+
B2C Jewels
27930401 · Nov 6
$1,872 SGD
$1,461 USD
View
1 more retailer has this diamond
Prices start from $1,661 SGDSave up to $211 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
$1,661 SGD