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Princess|Natural|GIA

1.20ct J SI2 Princess Natural Diamond

VG • J/SI2 • GIA 1149510172

Certificate GIA 1149510172

Diamond specifications and retailer prices

From $4,852 AUD
As of November 4, 2026
Save $2,199 AUD (31%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $10,024 AUD at MOH London · As of November 4, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1149510172. Listed at 17 retailers as of November 4, 2026, with a 45% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
J
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1149510172
Dimensions5.83 × 5.66 × 4.36 mm
L/W Ratio1.03
Culet sizeNone
Top View
5.83 mm5.66 mm1.20 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1149510172
Side View
Table 75.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 77.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $10,024 AUD|Low: $4,860 AUD|High: $10,172 AUD|Avg: $6,416 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 6$4,860 AUD
Retailer 5$4,941 AUD
Retailer 7$5,717 AUD
Retailer 9$5,717 AUD
Retailer 2$6,373 AUD
Retailer 8$6,597 AUD
Retailer 4$6,696 AUD
Retailer 3$7,051 AUD
MOH London$10,024 AUD

43 data points across 9 retailers

17 retailers$4,852 AUD to $7,051 AUD

B
Cheapest Retailer
-
$4,852 AUD
B
Retailer 2
-
$4,860 AUD
View
Retailer 3
-
$4,941 AUD
View
Price last confirmed 13 days ago
B
Retailer 4
-
$4,973 AUD
View
B
Retailer 5
-
$5,031 AUD
View
B
Retailer 6
-
$5,418 AUD
View
B
Retailer 7
-
$5,434 AUD
View
B
Retailer 8
-
$5,717 AUD
View
Retailer 9
-
$5,717 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$5,717 AUD
View
C
Retailer 11
-
$6,222 AUD
View
B
Retailer 12
-
$6,373 AUD
View
C
Retailer 13
-
$6,597 AUD
View
B
Retailer 14
-
$6,696 AUD
View
Retailer 15
-
$7,051 AUD
View
Most Expensive
MOH London
114B3280F · Nov 4
$10,024 AUD
£5,423 GBP
View
Price under review
15 more retailers have this diamond
Prices start from $4,852 AUDSave up to $2,199 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
1.20ct Princess
$4,852 AUD