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Princess|Natural|GIA

1.21ct J SI2 Princess Natural Diamond

EX • J/SI2 • GIA 2243007455

Certificate GIA 2243007455

Diamond specifications and retailer prices

From $1,666 AUD
As of October 31, 2026
Save $691 AUD (29%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,985 AUD at Helzberg Diamonds · As of October 27, 2026
View at Helzberg Diamonds

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 2243007455. Listed at 12 retailers as of October 31, 2026, with a 41% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle23.72°
Pavilion angle38.35°
OriginNatural
Grading LabGIA
CertificateGIA 2243007455
Dimensions5.99 × 5.89 × 4.08 mm
L/W Ratio1.02
Culet sizeNone
Top View
5.99 mm5.89 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2243007455
Side View
Table 73.0%Crown 23.72°Girdle: Slightly ThickPavilion 38.35°Culet: NoneDepth 69.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $2,985 AUD|Low: $1,666 AUD|High: $3,240 AUD|Avg: $2,235 AUD|-7.9%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 10$1,666 AUD
Retailer 2$1,685 AUD
Retailer 9$1,752 AUD
Retailer 5$1,778 AUD
Retailer 6$1,857 AUD
Retailer 11$2,043 AUD
Retailer 7$2,321 AUD
Retailer 4$2,358 AUD
Retailer 8$2,394 AUD
Retailer 3$2,805 AUD
Helzberg Diamonds$2,985 AUD

40 data points across 11 retailers

12 retailers$1,666 AUD to $2,358 AUD

A
Cheapest Retailer
-
$1,666 AUD
A
Retailer 2
-
$1,685 AUD
View
A
Retailer 3
-
$1,752 AUD
View
A
Retailer 4
-
$1,778 AUD
View
A
Retailer 5
-
$1,857 AUD
View
A
Retailer 6
-
$2,043 AUD
View
B+
Retailer 7
-
$2,246 AUD
View
A
Retailer 8
-
$2,321 AUD
View
A
Retailer 9
-
$2,358 AUD
View
Retailer 10
-
$2,394 AUD
View
Price last confirmed 12 days ago
Retailer 11
-
$2,805 AUD
View
Price last confirmed 11 days ago
Most Expensive
Helzberg Diamonds
XZRIIKJGGNKLL · Oct 27
$2,985 AUD
$2,051 USD
View
Price last confirmed 10 days ago
11 more retailers have this diamond
Prices start from $1,666 AUDSave up to $691 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.

A
1.21ct Princess
$1,666 AUD