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Cushion|Natural|GIA

1.21ct G SI1 Cushion Natural Diamond

GD • G/SI1 • GIA 2556749371

Certificate GIA 2556749371

Diamond specifications and retailer prices

From £1,485 GBP
As of November 6, 2026
Save £2,000 GBP (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,485 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded G 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 2556749371. Listed at 14 retailers as of November 4, 2026, with prices from £1,485 to £3,485, a £2,000 spread on the same certified stone. MOH London lists it at £3,485. 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

1.21
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556749371
Dimensions6.84 × 5.42 × 3.91 mm
L/W Ratio1.26
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Needle
Top View
6.84 mm5.42 mm1.21 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556749371
Side View
Table 65.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 72.1%

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: £3,485 GBP|Low: £1,485 GBP|High: £3,716 GBP|Avg: £2,207 GBP|-6.2%
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 2£1,485 GBP
Retailer 13£1,579 GBP
Retailer 10£1,762 GBP
Retailer 12£1,786 GBP
Retailer 4£1,951 GBP
Retailer 5£2,020 GBP
Retailer 7£2,099 GBP
Retailer 8£2,111 GBP
Retailer 11£2,155 GBP
Retailer 3£2,279 GBP
Retailer 6£2,330 GBP
Retailer 9£2,434 GBP
MOH London£3,485 GBP

25 data points across 13 retailers

14 retailers£1,485 GBP to £3,485 GBP

A
Cheapest Retailer
-
£1,485 GBP
A
Retailer 2
-
£1,579 GBP
View
Final sale: no returns
B+
Retailer 3
-
£1,762 GBP
View
B+
Retailer 4
-
£1,786 GBP
View
B+
Retailer 5
-
£1,951 GBP
View
Retailer 6
-
£2,020 GBP
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£2,099 GBP
View
B+
Retailer 8
-
£2,111 GBP
View
B+
Retailer 9
-
£2,155 GBP
View
B+
Retailer 10
-
£2,279 GBP
View
B+
Retailer 11
-
£2,330 GBP
View
Retailer 12
-
£2,350 GBP
View
Price last confirmed 31 days ago
B
Retailer 13
-
£2,434 GBP
View
Most Expensive
B
MOH London
A6A329D7A · Nov 4
£3,485 GBP
View
13 more retailers have this diamond
Prices start from £1,485 GBPSave up to £2,000 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
1.21ct Cushion
£1,485 GBP