CaratHunter
Plans
Princess|Natural|GIA

1.20ct F SI1 Princess Natural Diamond

EX • F/SI1 • GIA 1559366867

Certificate GIA 1559366867

Diamond specifications and retailer prices

From £1,682 GBP
As of November 6, 2026
Save £2,036 GBP (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,507 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 1559366867. Listed at 21 retailers as of November 4, 2026, with a 121% 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559366867
Dimensions5.96 × 5.95 × 4.12 mm
L/W Ratio1.00
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal, Cavity, Cloud, Pinpoint
Top View
5.96 mm5.95 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1559366867
Side View
Table 72.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 69.2%

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: £4,507 GBP|Low: £1,682 GBP|High: £4,521 GBP|Avg: £2,645 GBP|+2.5%
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
November 5, 2026
Retailer 9£1,682 GBP
Retailer 10£1,765 GBP
Retailer 12£2,058 GBP
Retailer 4£2,098 GBP
Retailer 6£2,109 GBP
Retailer 3£2,159 GBP
Retailer 11£2,335 GBP
Retailer 7£2,360 GBP
Retailer 5£2,494 GBP
Retailer 13£2,599 GBP
Retailer 2£2,721 GBP
Retailer 8£3,718 GBP
Queensmith£4,507 GBP

30 data points across 13 retailers

21 retailers£1,682 GBP to £3,718 GBP

A
Cheapest Retailer
-
£1,682 GBP
A
Retailer 2
-
£1,765 GBP
View
B+
Retailer 3
-
£2,058 GBP
View
Final sale: no returns
Retailer 4
-
£2,098 GBP
View
Price last confirmed 8 days ago
B+
Retailer 5
-
£2,109 GBP
View
B+
Retailer 6
-
£2,158 GBP
View
B+
Retailer 7
-
£2,159 GBP
View
Retailer 8
-
£2,335 GBP
View
Price last confirmed 21 days ago
Retailer 9
-
£2,335 GBP
View
Price last confirmed 19 days ago
B+
Retailer 10
-
£2,335 GBP
View
B+
Retailer 11
-
£2,360 GBP
View
B+
Retailer 12
-
£2,364 GBP
View
Retailer 13
-
£2,424 GBP
View
Price last confirmed 22 days ago
Retailer 14
-
£2,446 GBP
View
Price last confirmed 10 days ago
Retailer 15
-
£2,494 GBP
View
Price last confirmed 30 days ago
B+
Retailer 16
-
£2,599 GBP
View
Retailer 17
-
£2,694 GBP
View
Price last confirmed 18 days ago
B+
Retailer 18
-
£2,721 GBP
View
B
Retailer 19
-
£3,718 GBP
View
Retailer 20
-
£4,068 GBP
View
Price last confirmed 20 days ago
Most Expensive
Queensmith
1559366867 · Oct 28
£4,507 GBP
View
Price last confirmed 9 days ago
20 more retailers have this diamond
Prices start from £1,682 GBPSave up to £2,036 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
£1,682 GBP