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Princess|Natural|GIA

1.20ct J SI2 Princess Natural Diamond

VG • J/SI2 • GIA 3145680614

Certificate GIA 3145680614

Diamond specifications and retailer prices

From £1,345 GBP
As of November 1, 2026
Save £1,071 GBP (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,515 GBP 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 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 3145680614. Listed at 14 retailers as of November 1, 2026, with a 80% 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
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3145680614
Dimensions6.17 × 5.89 × 3.96 mm
L/W Ratio1.05
Top View
6.17 mm5.89 mm1.20 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 3145680614
Side View
Table 77.0%CrownGirdle: VTN-THKPavilionCulet: NoneDepth 67.3%

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: £1,675 GBP|Low: £1,345 GBP|High: £2,981 GBP|Avg: £1,928 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5£1,345 GBP
Retailer 6£1,523 GBP
Retailer 1£1,675 GBP
Retailer 3£1,816 GBP
Retailer 2£2,087 GBP
Retailer 4£2,961 GBP

45 data points across 6 retailers

14 retailers£1,345 GBP to £2,416 GBP

B+
Cheapest Retailer
-
£1,345 GBP
Retailer 2
-
£1,523 GBP
View
Price last confirmed 45 days ago
B
Retailer 3
-
£1,567 GBP
View
B
Retailer 4
-
£1,666 GBP
View
B
Retailer 5
-
£1,675 GBP
View
Retailer 6
-
£1,758 GBP
View
Price last confirmed 45 days ago
B
Retailer 7
-
£1,771 GBP
View
B
Retailer 8
-
£1,771 GBP
View
B
Retailer 9
-
£1,816 GBP
View
B
Retailer 10
-
£1,830 GBP
View
B
Retailer 11
-
£2,087 GBP
View
C
Retailer 12
-
£2,416 GBP
View
Retailer 13
-
£2,961 GBP
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
8f452dc1-393b-4fbb-91e4-8a526f2f539f · Sep 21
£3,515 GBP
$4,705 USD
View
Price last confirmed 46 days ago
13 more retailers have this diamond
Prices start from £1,345 GBPSave up to £1,071 GBP

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
£1,345 GBP