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Cushion|Natural|GIA

1.22ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 2558490322

Certificate GIA 2558490322

Diamond specifications and retailer prices

From £1,463 GBP
As of November 6, 2026
Save £1,964 GBP (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,427 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.22ct natural cushion diamond

This 1.22ct natural cushion sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2558490322. Listed at 18 retailers as of November 1, 2026, with prices from £1,463 to £3,427, a £1,964 spread on the same certified stone. MOH London lists it at £3,427. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.22
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558490322
Dimensions7.71 × 5.29 × 3.57 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Twinning Wisp, Feather, Needle
Top View
7.71 mm5.29 mm1.22 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558490322
Side View
Table 68.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 67.4%

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: £3,427 GBP|Low: £1,463 GBP|High: £3,464 GBP|Avg: £2,115 GBP|-1.1%
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
November 6, 2026
Retailer 13£1,463 GBP
Retailer 2£1,527 GBP
Retailer 11£1,724 GBP
Retailer 4£1,796 GBP
Retailer 5£1,824 GBP
Retailer 6£1,887 GBP
Retailer 8£2,034 GBP
Retailer 9£2,046 GBP
Retailer 3£2,051 GBP
Retailer 12£2,114 GBP
Retailer 10£2,375 GBP
Retailer 7£2,416 GBP
MOH London£3,427 GBP

25 data points across 13 retailers

18 retailers£1,463 GBP to £3,427 GBP

A
Cheapest Retailer
-
£1,463 GBP
A
Retailer 2
-
£1,527 GBP
View
B+
Retailer 3
-
£1,724 GBP
View
B+
Retailer 4
-
£1,796 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,824 GBP
View
B+
Retailer 6
-
£1,832 GBP
View
B+
Retailer 7
-
£1,834 GBP
View
B+
Retailer 8
-
£1,887 GBP
View
Retailer 9
-
£1,957 GBP
View
Price last confirmed 26 days ago
B
Retailer 10
-
£2,034 GBP
View
B+
Retailer 11
-
£2,046 GBP
View
B
Retailer 12
-
£2,051 GBP
View
B
Retailer 13
-
£2,114 GBP
View
B
Retailer 14
-
£2,116 GBP
View
Retailer 15
-
£2,203 GBP
View
Price last confirmed 31 days ago
B
Retailer 16
-
£2,375 GBP
View
B
Retailer 17
-
£2,416 GBP
View
Most Expensive
B
MOH London
2E7EEBB50 · Nov 1
£3,427 GBP
View
17 more retailers have this diamond
Prices start from £1,463 GBPSave up to £1,964 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
1.22ct Cushion
£1,463 GBP