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Princess|Natural|GIA

1.21ct J SI2 Princess Natural Diamond

ID • J/SI2 • GIA 4

Certificate GIA 4

Diamond specifications and retailer prices

From $4,583 AUD
As of November 4, 2026
Save $1,183 AUD (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,766 AUD at Blue Nile · As of November 5, 2026
View at Blue Nile

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of November 4, 2026, with prices from $4,583 to $5,766, a $1,183 spread on the same certified stone. Blue Nile lists it at $5,766. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.21
Carat
J
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 4
Dimensions6.03 × 5.84 × 4.06 mm
L/W Ratio1.03
Top View
6.03 mm5.84 mm1.21 ctJ / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 4
Side View
Table 70.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 69.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: $5,766 AUD|Low: $4,583 AUD|High: $5,766 AUD|Avg: $4,831 AUD
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 3$4,583 AUD
Retailer 2$4,611 AUD
Blue Nile$5,766 AUD

2 data points across 3 retailers

3 retailers$4,583 AUD to $5,766 AUD

B
Cheapest Retailer
-
$4,583 AUD
B
Retailer 2
-
$4,611 AUD
View
Most Expensive
B
Blue Nile
17346607 · Nov 5
$5,766 AUD
$3,962 USD
View
2 more retailers have this diamond
Prices start from $4,583 AUDSave up to $1,183 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
$4,583 AUD