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Cushion|Natural|GIA

1.20ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 2557264793

Certificate GIA 2557264793

Diamond specifications and retailer prices

From £1,960 GBP
As of November 6, 2026
Save £2,371 GBP (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,720 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 2557264793. Listed at 19 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557264793
Dimensions7.65 × 5.42 × 3.68 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Knot, Cavity, Natural
Top View
7.65 mm5.42 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557264793
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.9%

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: £4,720 GBP|Low: £1,941 GBP|High: £4,806 GBP|Avg: £2,851 GBP|+0.8%
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 15£1,960 GBP
Retailer 9£2,035 GBP
Retailer 7£2,331 GBP
Retailer 5£2,359 GBP
Retailer 13£2,377 GBP
Retailer 6£2,397 GBP
Retailer 16£2,499 GBP
Retailer 4£2,598 GBP
Retailer 2£2,688 GBP
Retailer 3£2,705 GBP
Retailer 11£2,723 GBP
Retailer 8£2,787 GBP
Retailer 10£3,023 GBP
Retailer 12£3,170 GBP
Retailer 14£4,332 GBP
Queensmith£4,720 GBP

28 data points across 16 retailers

19 retailers£1,960 GBP to £4,332 GBP

A
Cheapest Retailer
-
£1,960 GBP
A
Retailer 2
-
£2,035 GBP
View
B+
Retailer 3
-
£2,331 GBP
View
B+
Retailer 4
-
£2,359 GBP
View
B+
Retailer 5
-
£2,377 GBP
View
B+
Retailer 6
-
£2,397 GBP
View
Final sale: no returns
B+
Retailer 7
-
£2,499 GBP
View
B+
Retailer 8
-
£2,502 GBP
View
Retailer 9
-
£2,598 GBP
View
Price last confirmed 9 days ago
B+
Retailer 10
-
£2,665 GBP
View
B+
Retailer 11
-
£2,688 GBP
View
B+
Retailer 12
-
£2,705 GBP
View
B+
Retailer 13
-
£2,723 GBP
View
B+
Retailer 14
-
£2,787 GBP
View
Retailer 15
-
£2,895 GBP
View
Price last confirmed 30 days ago
B+
Retailer 16
-
£3,023 GBP
View
B+
Retailer 17
-
£3,170 GBP
View
B
Retailer 18
-
£4,332 GBP
View
Most Expensive
Queensmith
2557264793 · Oct 28
£4,720 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from £1,960 GBPSave up to £2,371 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
£1,960 GBP