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Princess|Natural|GIA

1.20ct D SI2 Princess Natural Diamond

EX • D/SI2 • GIA 3555365942

Certificate GIA 3555365942

Diamond specifications and retailer prices

From £1,522 GBP
As of November 6, 2026
Save £2,706 GBP (64%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,246 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural princess diamond

This 1.2ct natural princess sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555365942. Listed at 20 retailers as of November 5, 2026, with a 178% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3555365942
Dimensions5.82 × 5.76 × 4.09 mm
L/W Ratio1.01
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Twinning Wisp, Crystal, Feather, Cavity, Needle, Natural
Top View
5.82 mm5.76 mm1.20 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555365942
Side View
Table 72.0%CrownGirdle: Very ThickPavilionCulet: 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: £4,246 GBP|Low: £1,522 GBP|High: £4,260 GBP|Avg: £2,529 GBP|-0.3%
Queensmith
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
Retailer 16
Retailer 17
November 6, 2026
Retailer 6£1,522 GBP
Retailer 2£1,592 GBP
Retailer 14£1,842 GBP
Retailer 8£1,866 GBP
Retailer 10£1,988 GBP
Retailer 17£2,022 GBP
Retailer 9£2,035 GBP
Retailer 4£2,100 GBP
Retailer 11£2,115 GBP
Retailer 7£2,126 GBP
Retailer 13£2,140 GBP
Retailer 16£2,194 GBP
Retailer 5£2,333 GBP
Retailer 12£2,511 GBP
Retailer 15£3,534 GBP
Retailer 3£4,228 GBP
Queensmith£4,246 GBP

23 data points across 17 retailers

20 retailers£1,522 GBP to £4,228 GBP

A
Cheapest Retailer
-
£1,522 GBP
A
Retailer 2
-
£1,592 GBP
View
A
Retailer 3
-
£1,842 GBP
View
B+
Retailer 4
-
£1,866 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,895 GBP
View
A
Retailer 6
-
£1,988 GBP
View
B+
Retailer 7
-
£2,022 GBP
View
Retailer 8
-
£2,035 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£2,094 GBP
View
B+
Retailer 10
-
£2,100 GBP
View
B+
Retailer 11
-
£2,115 GBP
View
B+
Retailer 12
-
£2,126 GBP
View
B+
Retailer 13
-
£2,140 GBP
View
B+
Retailer 14
-
£2,194 GBP
View
B+
Retailer 15
-
£2,333 GBP
View
Retailer 16
-
£2,421 GBP
View
Price last confirmed 66 days ago
B+
Retailer 17
-
£2,511 GBP
View
B
Retailer 18
-
£3,534 GBP
View
B
Retailer 19
-
£4,228 GBP
View
Most Expensive
Queensmith
3555365942 · Oct 28
£4,246 GBP
View
Price last confirmed 8 days ago
19 more retailers have this diamond
Prices start from £1,522 GBPSave up to £2,706 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
£1,522 GBP