CaratHunter
Plans
Princess|Natural|GIA

1.21ct J SI1 Princess Natural Diamond

ID • J/SI1 • GIA 7558334583

Certificate GIA 7558334583

Diamond specifications and retailer prices

From $3,101 AUD
As of November 6, 2026
Save $2,770 AUD (47%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,027 AUD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7558334583. Listed at 12 retailers as of November 4, 2026, with a 89% 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7558334583
Dimensions6.15 × 5.93 × 4.32 mm
L/W Ratio1.04
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
6.15 mm5.93 mm1.21 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7558334583
Side View
Table 73.0%CrownGirdle: MediumPavilionCulet: NoneDepth 72.8%

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 6
Current: $4,173 AUD|Low: $2,844 AUD|High: $5,958 AUD|Avg: $4,074 AUD|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 6$3,101 AUD
Retailer 5$3,238 AUD
Retailer 2$3,652 AUD
Retailer 3$4,101 AUD
Retailer 7$4,138 AUD
Retailer 1$4,173 AUD
Retailer 4$5,871 AUD

46 data points across 7 retailers

12 retailers$3,101 AUD to $5,871 AUD

B+
Cheapest Retailer
-
$3,101 AUD
Final sale: no returns
B+
Retailer 2
-
$3,238 AUD
View
Retailer 3
-
$3,361 AUD
View
Price last confirmed 29 days ago
Retailer 4
-
$3,361 AUD
View
Price last confirmed 29 days ago
Retailer 5
-
$3,516 AUD
View
Price last confirmed 38 days ago
B+
Retailer 6
-
$3,652 AUD
View
Retailer 7
-
$3,879 AUD
View
Price last confirmed 38 days ago
B
Retailer 8
-
$4,101 AUD
View
Retailer 9
-
$4,138 AUD
View
Price last confirmed 30 days ago
B
Retailer 10
-
$4,173 AUD
View
B
Retailer 11
-
$5,871 AUD
View
Most Expensive
NZ Jewellers
df130ddb-a7b6-4730-9d9a-f9666ead6c40 · Sep 30
$7,027 AUD
$4,828 USD
View
Price last confirmed 37 days ago
11 more retailers have this diamond
Prices start from $3,101 AUDSave up to $2,770 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
$3,101 AUD