Princess|Natural|GIA

1.20ct J SI2 Princess Natural Diamond

VG • J/SI2 • GIA 4399

Certificate GIA 4399

Diamond specifications and retailer prices

From £1,369 GBP
As of November 6, 2026
Save £2,146 GBP (61%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £3,515 GBP at NZ Jewellers · As of October 6, 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. Listed at 27 retailers as of November 5, 2026, with a 157% 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 4399
Dimensions6.14 × 5.87 × 3.95 mm
L/W Ratio1.05
Top View
6.14 mm5.87 mm1.20 ctJ / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateGIA 4399
Side View
Table 77.0%CrownGirdle: VTN-THKPavilionCulet: NoneDepth 67.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,515 GBP|Low: £1,352 GBP|High: £3,515 GBP|Avg: £1,806 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 24, 2026
Retailer 7£1,369 GBP
Retailer 8£1,433 GBP
Retailer 2£1,523 GBP
Retailer 4£1,523 GBP
Retailer 3£1,594 GBP
Retailer 6£1,673 GBP
Retailer 5£1,758 GBP
NZ Jewellers£3,515 GBP

20 data points across 8 retailers

27 retailers£1,369 GBP to £3,515 GBP

B+
Cheapest Retailer
-
£1,369 GBP
B+
Retailer 2
-
£1,433 GBP
View
Retailer 3
-
£1,523 GBP
View
Price last confirmed 39 days ago
Retailer 4
-
£1,523 GBP
View
Price last confirmed 8 days ago
Retailer 5
-
£1,523 GBP
View
Price last confirmed 29 days ago
Retailer 6
-
£1,523 GBP
View
Price last confirmed 36 days ago
Retailer 7
-
£1,523 GBP
View
Price last confirmed 30 days ago
Retailer 8
-
£1,523 GBP
View
Price last confirmed 27 days ago
B
Retailer 9
-
£1,523 GBP
View
Retailer 10
-
£1,523 GBP
View
Price last confirmed 33 days ago
Retailer 11
-
£1,523 GBP
View
Price last confirmed 21 days ago
Retailer 12
-
£1,594 GBP
View
Price last confirmed 22 days ago
B
Retailer 13
-
£1,594 GBP
View
Retailer 14
-
£1,594 GBP
View
Price last confirmed 38 days ago
B
Retailer 15
-
£1,673 GBP
View
Retailer 16
-
£1,758 GBP
View
Price last confirmed 30 days ago
Retailer 17
-
£1,758 GBP
View
Price last confirmed 38 days ago
Retailer 18
-
£1,758 GBP
View
Price last confirmed 35 days ago
Retailer 19
-
£1,758 GBP
View
Price last confirmed 38 days ago
B
Retailer 20
-
£1,758 GBP
View
Retailer 21
-
£1,758 GBP
View
Price last confirmed 28 days ago
Retailer 22
-
£3,515 GBP
View
Price last confirmed 34 days ago
C
Retailer 23
-
£3,515 GBP
View
Retailer 24
-
£3,515 GBP
View
Price last confirmed 39 days ago
Retailer 25
-
£3,515 GBP
View
Price last confirmed 28 days ago
Retailer 26
-
£3,515 GBP
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
c92a8cea-b019-49d0-b9b0-b60d35090f44 · Oct 6
£3,515 GBP
$4,705 USD
View
Price last confirmed 31 days ago
26 more retailers have this diamond
Prices start from £1,369 GBPSave up to £2,146 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
£1,369 GBP