Princess|Natural|GIA

1.20ct E SI2 Princess Natural Diamond

GD • E/SI2 • GIA 1428218435

Certificate GIA 1428218435

Diamond specifications and retailer prices

From $3,585 USD
As of October 25, 2026
Save $3,767 USD (51%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,000 USD at NZ Jewellers · As of September 21, 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 E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1428218435. Listed at 17 retailers as of October 25, 2026, with a 105% 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
E
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1428218435
Dimensions5.84 × 5.76 × 4.29 mm
L/W Ratio1.01
Culet sizeNone
Top View
5.84 mm5.76 mm1.20 ctE / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1428218435
Side View
Table 74.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 74.4%

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: Oct 25
Current: $4,554 USD|Low: $3,585 USD|High: $7,402 USD|Avg: $5,001 USD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 5$3,585 USD
Retailer 6$4,160 USD
Retailer 1$4,554 USD
Retailer 2$4,566 USD
Retailer 4$5,161 USD
Retailer 3$7,352 USD

43 data points across 6 retailers

17 retailers$3,585 USD to $7,352 USD

B+
Cheapest Retailer
-
$3,585 USD
B
Retailer 2
-
$3,660 USD
View
B
Retailer 3
-
$3,804 USD
A$5,852 AUD
View
B
Retailer 4
-
$3,942 USD
View
B
Retailer 5
-
$4,144 USD
View
Retailer 6
-
$4,160 USD
View
Price last confirmed 38 days ago
B
Retailer 7
-
$4,160 USD
View
B
Retailer 8
-
$4,554 USD
£3,586 GBP
View
B
Retailer 9
-
$4,566 USD
£3,595 GBP
View
B
Retailer 10
-
$4,690 USD
View
B
Retailer 11
-
$4,690 USD
View
Retailer 12
-
$4,800 USD
View
Price last confirmed 38 days ago
B
Retailer 13
-
$4,840 USD
View
Retailer 14
-
$5,161 USD
€4,915 EUR
View
Price last confirmed 7 days ago
C
Retailer 15
-
$6,642 USD
View
B
Retailer 16
-
$7,352 USD
£5,789 GBP
View
Most Expensive
NZ Jewellers
e4bc873f-4e4f-4c2f-9613-ad4889a50ca7 · Sep 21
$8,000 USD
View
Price last confirmed 39 days ago
16 more retailers have this diamond
Prices start from $3,585 USDSave up to $3,767 USD

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
$3,585 USD