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Princess|Natural|GIA

1.20ct I SI1 Princess Natural Diamond

ID • I/SI1 • GIA 1529912024

Certificate GIA 1529912024

Diamond specifications and retailer prices

From $2,384 AUD
As of November 6, 2026
Save $3,067 AUD (56%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,451 AUD at MOH London · As of November 2, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1529912024. Listed at 14 retailers as of November 2, 2026, with prices from $2,384 to $5,451, a $3,067 spread on the same certified stone. MOH London lists it at $5,451. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1529912024
Dimensions5.80 × 5.75 × 4.08 mm
L/W Ratio1.01
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
5.80 mm5.75 mm1.20 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1529912024
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 71.0%

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: Nov 6
Current: $5,451 AUD|Low: $2,384 AUD|High: $5,516 AUD|Avg: $3,354 AUD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 13$2,384 AUD
Retailer 2$2,503 AUD
Retailer 15$2,872 AUD
Retailer 4$2,991 AUD
Retailer 3$3,013 AUD
Retailer 6$3,192 AUD
Retailer 7$3,192 AUD
Retailer 12$3,260 AUD
Retailer 5$3,299 AUD
Retailer 8$3,312 AUD
Retailer 14$3,312 AUD
Retailer 10$3,379 AUD
Retailer 11$3,797 AUD
Retailer 9$4,226 AUD
MOH London$5,451 AUD

12 data points across 15 retailers

14 retailers$2,384 AUD to $5,451 AUD

A
Cheapest Retailer
-
$2,384 AUD
A
Retailer 2
-
$2,503 AUD
View
A
Retailer 3
-
$2,872 AUD
View
Final sale: no returns
A
Retailer 4
-
$2,991 AUD
View
A
Retailer 5
-
$3,013 AUD
View
B+
Retailer 6
-
$3,260 AUD
View
B+
Retailer 7
-
$3,299 AUD
View
B+
Retailer 8
-
$3,312 AUD
View
B+
Retailer 9
-
$3,312 AUD
View
B+
Retailer 10
-
$3,379 AUD
View
Retailer 11
-
$3,684 AUD
View
Price last confirmed 52 days ago
B+
Retailer 12
-
$3,797 AUD
View
B+
Retailer 13
-
$4,226 AUD
View
Most Expensive
B
MOH London
18FC98B76 · Nov 2
$5,451 AUD
£2,949 GBP
View
13 more retailers have this diamond
Prices start from $2,384 AUDSave up to $3,067 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
$2,384 AUD