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Princess|Natural|GIA

1.20ct I SI1 Princess Natural Diamond

ID • I/SI1 • GIA 1529912024

Certificate GIA 1529912024

Diamond specifications and retailer prices

From £1,224 GBP
As of November 6, 2026
Save £1,574 GBP (56%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,798 GBP at MOH London · As of November 2, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1529912024. Listed at 14 retailers as of November 2, 2026, with prices from £1,224 to £2,798, a £1,574 spread on the same certified stone. MOH London lists it at £2,798. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1529912024
Dimensions5.80 × 5.75 × 4.08 mm
L/W Ratio1.01
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
5.80 mm5.75 mm1.20 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1529912024
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 71.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £2,798 GBP|Low: £1,224 GBP|High: £2,831 GBP|Avg: £1,722 GBP|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 7, 2026
Retailer 13£1,224 GBP
Retailer 8£1,285 GBP
Retailer 15£1,474 GBP
Retailer 4£1,535 GBP
Retailer 3£1,547 GBP
Retailer 6£1,638 GBP
Retailer 7£1,638 GBP
Retailer 12£1,674 GBP
Retailer 5£1,694 GBP
Retailer 9£1,700 GBP
Retailer 14£1,700 GBP
Retailer 2£1,730 GBP
Retailer 11£1,949 GBP
Retailer 10£2,170 GBP
MOH London£2,798 GBP

13 data points across 15 retailers

14 retailers£1,224 GBP to £2,798 GBP

A
Cheapest Retailer
-
£1,224 GBP
A
Retailer 2
-
£1,285 GBP
View
A
Retailer 3
-
£1,474 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,535 GBP
View
A
Retailer 5
-
£1,547 GBP
View
B+
Retailer 6
-
£1,674 GBP
View
B+
Retailer 7
-
£1,694 GBP
View
B+
Retailer 8
-
£1,700 GBP
View
B+
Retailer 9
-
£1,700 GBP
View
B+
Retailer 10
-
£1,730 GBP
View
Retailer 11
-
£1,891 GBP
View
Price last confirmed 53 days ago
B+
Retailer 12
-
£1,949 GBP
View
B+
Retailer 13
-
£2,170 GBP
View
Most Expensive
B
MOH London
18FC98B76 · Nov 2
£2,798 GBP
View
13 more retailers have this diamond
Prices start from £1,224 GBPSave up to £1,574 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.

A
1.20ct Princess
£1,224 GBP