Princess|Natural|GIA

1.20ct F SI1 Princess Natural Diamond

ID • F/SI1 • GIA 6555080848

Certificate GIA 6555080848

Diamond specifications and retailer prices

From £1,339 GBP
As of November 6, 2026
Save £1,745 GBP (57%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,118 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555080848. Listed at 22 retailers as of November 4, 2026, with a 130% 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555080848
Dimensions5.69 × 5.62 × 4.10 mm
L/W Ratio1.01
Top View
5.69 mm5.62 mm1.20 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555080848
Side View
Table 70.0%CrownGirdle: ThickPavilionCulet: NoneDepth 73.0%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £4,118 GBP|Low: £1,339 GBP|High: £4,132 GBP|Avg: £2,240 GBP|+2.7%
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
November 6, 2026
Retailer 14£1,339 GBP
Retailer 2£1,409 GBP
Retailer 4£1,628 GBP
Retailer 12£1,671 GBP
Retailer 11£1,677 GBP
Retailer 6£1,733 GBP
Retailer 7£1,862 GBP
Retailer 3£1,869 GBP
Retailer 9£1,918 GBP
Retailer 5£1,920 GBP
Retailer 10£2,154 GBP
Retailer 8£2,191 GBP
Retailer 13£3,083 GBP
Queensmith£4,118 GBP

30 data points across 14 retailers

22 retailers£1,339 GBP to £3,083 GBP

A
Cheapest Retailer
-
£1,339 GBP
A
Retailer 2
-
£1,409 GBP
View
A
Retailer 3
-
£1,628 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,671 GBP
View
A
Retailer 5
-
£1,677 GBP
View
A
Retailer 6
-
£1,732 GBP
View
A
Retailer 7
-
£1,733 GBP
View
Retailer 8
-
£1,862 GBP
View
Price last confirmed 19 days ago
Retailer 9
-
£1,862 GBP
View
Price last confirmed 21 days ago
B+
Retailer 10
-
£1,862 GBP
View
B+
Retailer 11
-
£1,869 GBP
View
B+
Retailer 12
-
£1,912 GBP
View
B+
Retailer 13
-
£1,918 GBP
View
B+
Retailer 14
-
£1,920 GBP
View
Retailer 15
-
£1,948 GBP
View
Price last confirmed 22 days ago
Retailer 16
-
£2,148 GBP
View
Price last confirmed 18 days ago
B+
Retailer 17
-
£2,154 GBP
View
B+
Retailer 18
-
£2,191 GBP
View
Retailer 19
-
£2,291 GBP
View
Price last confirmed 30 days ago
B
Retailer 20
-
£3,083 GBP
View
Retailer 21
-
£3,892 GBP
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
6555080848 · Oct 28
£4,118 GBP
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from £1,339 GBPSave up to £1,745 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
£1,339 GBP