CaratHunter
Plans
Princess|Natural|GIA

1.20ct L SI1 Princess Natural Diamond

GD • L/SI1 • GIA 1428109336

Certificate GIA 1428109336

Diamond specifications and retailer prices

From $1,707 AUD
As of November 1, 2026
Save $1,193 AUD (41%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,157 AUD at NZ Jewellers · As of September 30, 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 L colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1428109336. Listed at 12 retailers as of November 1, 2026, with a 70% 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
L
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1428109336
Dimensions5.77 × 5.74 × 4.19 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.77 mm5.74 mm1.20 ctL / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1428109336
Side View
Table 77.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 73.0%

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 1
Current: $2,900 AUD|Low: $1,707 AUD|High: $2,943 AUD|Avg: $2,257 AUD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4$1,707 AUD
Retailer 5$1,916 AUD
Retailer 6$2,143 AUD
Retailer 2$2,320 AUD
Retailer 3$2,580 AUD
Retailer 1$2,900 AUD

44 data points across 6 retailers

12 retailers$1,707 AUD to $2,900 AUD

B+
Cheapest Retailer
-
$1,707 AUD
B+
Retailer 2
-
$1,774 AUD
View
Retailer 3
-
$1,916 AUD
View
Price last confirmed 36 days ago
Retailer 4
-
$2,004 AUD
View
Price last confirmed 38 days ago
B
Retailer 5
-
$2,071 AUD
View
B
Retailer 6
-
$2,143 AUD
View
Retailer 7
-
$2,210 AUD
View
Price last confirmed 38 days ago
B
Retailer 8
-
$2,263 AUD
View
B
Retailer 9
-
$2,320 AUD
View
B
Retailer 10
-
$2,580 AUD
View
B
Retailer 11
-
$2,900 AUD
View
Most Expensive
NZ Jewellers
54dbbb68-aeb7-4a13-a4ff-261356829c83 · Sep 30
$5,157 AUD
$3,610 USD
View
Price last confirmed 36 days ago
11 more retailers have this diamond
Prices start from $1,707 AUDSave up to $1,193 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
$1,707 AUD