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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 £2,491 GBP
As of November 4, 2026
Save £947 GBP (28%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,146 GBP 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 16 retailers as of November 4, 2026, with a 38% 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £5,146 GBP|Low: £2,460 GBP|High: £5,221 GBP|Avg: £3,293 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5£2,495 GBP
Retailer 4£2,536 GBP
Retailer 6£2,935 GBP
Retailer 8£2,935 GBP
Retailer 3£3,281 GBP
Retailer 7£3,387 GBP
Retailer 2£3,437 GBP
MOH London£5,146 GBP

43 data points across 8 retailers

16 retailers£2,491 GBP to £3,437 GBP

B
Cheapest Retailer
-
£2,491 GBP
B
Retailer 2
-
£2,495 GBP
View
Retailer 3
-
£2,536 GBP
View
Price last confirmed 12 days ago
B
Retailer 4
-
£2,553 GBP
View
B
Retailer 5
-
£2,583 GBP
View
B
Retailer 6
-
£2,781 GBP
View
B
Retailer 7
-
£2,790 GBP
View
B
Retailer 8
-
£2,935 GBP
View
Retailer 9
-
£2,935 GBP
View
Price last confirmed 8 days ago
B
Retailer 10
-
£2,935 GBP
View
C
Retailer 11
-
£3,194 GBP
View
B
Retailer 12
-
£3,281 GBP
View
C
Retailer 13
-
£3,387 GBP
View
B
Retailer 14
-
£3,437 GBP
View
Most Expensive
MOH London
114B3280F · Nov 4
£5,146 GBP
View
Price under review
14 more retailers have this diamond
Prices start from £2,491 GBPSave up to £947 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
£2,491 GBP