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Cushion|Natural|GIA

1.21ct K SI2 Cushion Natural Diamond

GD • K/SI2 • GIA 7556140199

Certificate GIA 7556140199

Diamond specifications and retailer prices

From £870 GBP
As of November 6, 2026
Save £1,078 GBP (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,948 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7556140199. Listed at 13 retailers as of November 4, 2026, with prices from £870 to £1,948, a £1,078 spread on the same certified stone. MOH London lists it at £1,948. 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
K
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556140199
Dimensions6.96 × 5.35 × 3.88 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
6.96 mm5.35 mm1.21 ctK / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556140199
Side View
Table 66.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 72.6%

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: £1,948 GBP|Low: £861 GBP|High: £2,111 GBP|Avg: £1,256 GBP|-7.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 12£870 GBP
Retailer 8£932 GBP
Retailer 9£963 GBP
Retailer 7£1,012 GBP
Retailer 2£1,018 GBP
Retailer 11£1,046 GBP
Retailer 4£1,096 GBP
Retailer 3£1,162 GBP
Retailer 6£1,230 GBP
Retailer 5£1,542 GBP
Retailer 10£1,750 GBP
MOH London£1,948 GBP

37 data points across 12 retailers

13 retailers£870 GBP to £1,948 GBP

A
Cheapest Retailer
-
£870 GBP
B+
Retailer 2
-
£932 GBP
View
Final sale: no returns
B+
Retailer 3
-
£963 GBP
View
B+
Retailer 4
-
£1,012 GBP
View
B+
Retailer 5
-
£1,018 GBP
View
B+
Retailer 6
-
£1,046 GBP
View
B+
Retailer 7
-
£1,096 GBP
View
B+
Retailer 8
-
£1,162 GBP
View
B+
Retailer 9
-
£1,230 GBP
View
B+
Retailer 10
-
£1,305 GBP
View
B
Retailer 11
-
£1,542 GBP
View
B
Retailer 12
-
£1,750 GBP
View
Most Expensive
B
MOH London
D75B670D1 · Nov 4
£1,948 GBP
View
12 more retailers have this diamond
Prices start from £870 GBPSave up to £1,078 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
£870 GBP