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Cushion|Natural|GIA

1.20ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6541435350

Certificate GIA 6541435350

Diamond specifications and retailer prices

From £2,017 GBP
As of November 6, 2026
Save £2,389 GBP (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,763 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.2ct natural cushion diamond

This 1.2ct natural cushion 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 6541435350. Listed at 19 retailers as of November 6, 2026, with a 118% 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541435350
Dimensions7.23 × 5.54 × 3.58 mm
L/W Ratio1.31
Top View
7.23 mm5.54 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541435350
Side View
Table 67.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 64.7%

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: £4,763 GBP|Low: £1,999 GBP|High: £4,844 GBP|Avg: £2,963 GBP|-1.7%
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
Retailer 15
Retailer 16
November 7, 2026
Retailer 16£2,017 GBP
Retailer 10£2,096 GBP
Retailer 7£2,401 GBP
Retailer 6£2,445 GBP
Retailer 15£2,447 GBP
Retailer 3£2,548 GBP
Retailer 11£2,570 GBP
Retailer 5£2,649 GBP
Retailer 9£2,741 GBP
Retailer 4£2,757 GBP
Retailer 13£2,807 GBP
Retailer 8£2,841 GBP
Retailer 12£3,083 GBP
Retailer 14£3,233 GBP
Retailer 2£4,406 GBP
Queensmith£4,763 GBP

24 data points across 16 retailers

19 retailers£2,017 GBP to £4,406 GBP

A
Cheapest Retailer
-
£2,017 GBP
A
Retailer 2
-
£2,096 GBP
View
B+
Retailer 3
-
£2,401 GBP
View
B+
Retailer 4
-
£2,445 GBP
View
Final sale: no returns
B+
Retailer 5
-
£2,447 GBP
View
B+
Retailer 6
-
£2,548 GBP
View
B+
Retailer 7
-
£2,553 GBP
View
B+
Retailer 8
-
£2,570 GBP
View
Retailer 9
-
£2,649 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£2,733 GBP
View
B+
Retailer 11
-
£2,741 GBP
View
B+
Retailer 12
-
£2,757 GBP
View
B+
Retailer 13
-
£2,807 GBP
View
B+
Retailer 14
-
£2,841 GBP
View
Retailer 15
-
£2,949 GBP
View
Price last confirmed 30 days ago
B+
Retailer 16
-
£3,083 GBP
View
B
Retailer 17
-
£3,233 GBP
View
B
Retailer 18
-
£4,406 GBP
View
Most Expensive
Queensmith
6541435350 · Oct 28
£4,763 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from £2,017 GBPSave up to £2,389 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 Cushion
£2,017 GBP