Princess|Natural|GIA

1.20ct I SI2 Princess Natural Diamond

ID • I/SI2 • GIA 5401

Certificate GIA 5401

Diamond specifications and retailer prices

From $3,001 AUD
As of November 6, 2026
Save $4,813 AUD (62%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $7,814 AUD at NZ Jewellers · As of October 6, 2026
View at NZ Jewellers

About this 1.2ct natural princess diamond

This 1.2ct natural princess sits in the classic one-carat band, graded I 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 29 retailers as of November 5, 2026, with a 160% 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

1.20
Carat
I
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5401
Dimensions5.60 × 5.53 × 4.03 mm
L/W Ratio1.01
Top View
5.60 mm5.53 mm1.20 ctI / SI2
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5401
Side View
Table 67.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 72.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: $7,814 AUD|Low: $3,001 AUD|High: $7,814 AUD|Avg: $4,003 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 24, 2026
Retailer 7$3,001 AUD
Retailer 8$3,190 AUD
Retailer 2$3,385 AUD
Retailer 4$3,385 AUD
Retailer 3$3,542 AUD
Retailer 6$3,695 AUD
Retailer 5$3,906 AUD
NZ Jewellers$7,814 AUD

19 data points across 8 retailers

29 retailers$3,001 AUD to $7,814 AUD

A
Cheapest Retailer
-
$3,001 AUD
B+
Retailer 2
-
$3,190 AUD
View
Retailer 3
-
$3,385 AUD
View
Price last confirmed 55 days ago
Retailer 4
-
$3,385 AUD
View
Price last confirmed 40 days ago
Retailer 5
-
$3,385 AUD
View
Price last confirmed 9 days ago
Retailer 6
-
$3,385 AUD
View
Price last confirmed 30 days ago
Retailer 7
-
$3,385 AUD
View
Price last confirmed 37 days ago
Retailer 8
-
$3,385 AUD
View
Price last confirmed 31 days ago
Retailer 9
-
$3,385 AUD
View
Price last confirmed 28 days ago
B+
Retailer 10
-
$3,385 AUD
View
Retailer 11
-
$3,385 AUD
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Price last confirmed 34 days ago
Retailer 12
-
$3,385 AUD
View
Price last confirmed 26 days ago
Retailer 13
-
$3,542 AUD
View
Price last confirmed 23 days ago
B+
Retailer 14
-
$3,542 AUD
View
Retailer 15
-
$3,542 AUD
View
Price last confirmed 39 days ago
B+
Retailer 16
-
$3,695 AUD
View
Retailer 17
-
$3,906 AUD
View
Price last confirmed 31 days ago
Retailer 18
-
$3,906 AUD
View
Price last confirmed 62 days ago
Retailer 19
-
$3,906 AUD
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Price last confirmed 36 days ago
Retailer 20
-
$3,906 AUD
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Price last confirmed 39 days ago
Retailer 21
-
$3,906 AUD
View
Price last confirmed 39 days ago
B+
Retailer 22
-
$3,906 AUD
View
Retailer 23
-
$3,906 AUD
View
Price last confirmed 29 days ago
Retailer 24
-
$7,814 AUD
View
Price last confirmed 35 days ago
B
Retailer 25
-
$7,814 AUD
View
Retailer 26
-
$7,814 AUD
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Price last confirmed 40 days ago
Retailer 27
-
$7,814 AUD
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Price last confirmed 29 days ago
Retailer 28
-
$7,814 AUD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
6a3fbdb0-887c-41aa-836d-f20eecf464de · Oct 6
$7,814 AUD
$5,369 USD
View
Price last confirmed 31 days ago
28 more retailers have this diamond
Prices start from $3,001 AUDSave up to $4,813 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
1.20ct Princess
$3,001 AUD