CaratHunter
Plans
Princess|Natural|IGI

1.21ct K SI1 Princess Natural Diamond

VG • K/SI1 • IGI 42

Certificate IGI 42

Diamond specifications and retailer prices

From $1,560 AUD
As of November 4, 2026
Save $282 AUD (15%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,843 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 K colour (faint-tinted) 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 $1,560 to $1,843, a $282 spread on the same certified stone. B2C Jewels lists it at $1,843. 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
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabIGI
CertificateIGI 42
Dimensions6.15 × 6.11 mm
L/W Ratio1.01
Top View
6.15 mm6.11 mm1.21 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateIGI 42
Side View
Table 74.0%CrownGirdle: MediumPavilionCulet: NoneDepth 67.1%

Caratlytics Score

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

Price History

Last verified: Nov 4
Current: $1,843 AUD|Low: $1,560 AUD|High: $2,102 AUD|Avg: $1,800 AUD|-12.3%
B2C Jewels
Retailer 2
October 29, 2026
Retailer 2$1,560 AUD
B2C Jewels$1,843 AUD

4 data points across 2 retailers

2 retailers$1,560 AUD to $1,843 AUD

B+
Cheapest Retailer
-
$1,560 AUD
Most Expensive
B+
B2C Jewels
27930414 · Nov 6
$1,843 AUD
$1,266 USD
View
1 more retailer has this diamond
Prices start from $1,560 AUDSave up to $282 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
$1,560 AUD