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Cushion|Natural|GIA

1.20ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 2556305715

Certificate GIA 2556305715

Diamond specifications and retailer prices

From £1,616 GBP
As of November 6, 2026
Save £2,043 GBP (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,659 GBP at MOH London · As of November 2, 2026
View at MOH London

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 2556305715. Listed at 22 retailers as of November 2, 2026, with prices from £1,616 to £3,659, a £2,043 spread on the same certified stone. MOH London lists it at £3,659. 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 2556305715
Dimensions6.98 × 5.58 × 3.84 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
6.98 mm5.58 mm1.20 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556305715
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

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: £3,659 GBP|Low: £1,587 GBP|High: £3,679 GBP|Avg: £2,153 GBP|-0.5%
MOH London
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
Retailer 18
Retailer 19
Retailer 20
November 7, 2026
Retailer 9£1,616 GBP
Retailer 16£1,737 GBP
Retailer 11£1,745 GBP
Retailer 17£1,765 GBP
Retailer 4£1,772 GBP
Retailer 12£1,861 GBP
Retailer 13£1,880 GBP
Retailer 3£1,907 GBP
Retailer 6£1,916 GBP
Retailer 20£1,947 GBP
Retailer 10£1,996 GBP
Retailer 7£2,017 GBP
Retailer 8£2,145 GBP
Retailer 15£2,210 GBP
Retailer 14£2,211 GBP
Retailer 2£2,269 GBP
Retailer 18£2,430 GBP
Retailer 19£2,548 GBP
Retailer 5£3,293 GBP
MOH London£3,659 GBP

24 data points across 20 retailers

22 retailers£1,616 GBP to £3,659 GBP

A
Cheapest Retailer
-
£1,616 GBP
A
Retailer 2
-
£1,737 GBP
View
A
Retailer 3
-
£1,745 GBP
View
Final sale: no returns
A
Retailer 4
-
£1,765 GBP
View
A
Retailer 5
-
£1,772 GBP
View
A
Retailer 6
-
£1,861 GBP
View
A
Retailer 7
-
£1,880 GBP
View
A
Retailer 8
-
£1,907 GBP
View
A
Retailer 9
-
£1,916 GBP
View
A
Retailer 10
-
£1,947 GBP
View
A
Retailer 11
-
£1,996 GBP
View
A
Retailer 12
-
£2,017 GBP
View
B+
Retailer 13
-
£2,135 GBP
View
B+
Retailer 14
-
£2,145 GBP
View
B+
Retailer 15
-
£2,210 GBP
View
Retailer 16
-
£2,211 GBP
View
Retailer 17
-
£2,269 GBP
View
Retailer 18
-
£2,339 GBP
View
Price last confirmed 31 days ago
B+
Retailer 19
-
£2,430 GBP
View
B+
Retailer 20
-
£2,548 GBP
View
B
Retailer 21
-
£3,293 GBP
View
Most Expensive
B
MOH London
721053E8E · Nov 2
£3,659 GBP
View
21 more retailers have this diamond
Prices start from £1,616 GBPSave up to £2,043 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
£1,616 GBP