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Cushion|Natural|GIA

1.21ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 1146647770

Certificate GIA 1146647770

Diamond specifications and retailer prices

From £3,080 GBP
As of November 6, 2026
Save £1,074 GBP (26%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,154 GBP at Jared · As of November 6, 2026
View at Jared

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1146647770. Listed at 8 retailers as of November 6, 2026, with prices from £3,080 to £4,154, a £1,074 spread on the same certified stone. Jared lists it at £4,154. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1146647770
Dimensions6.60 × 5.67 × 3.93 mm
L/W Ratio1.16
Culet sizeNone
Top View
6.60 mm5.67 mm1.21 ctE / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 1146647770
Side View
Table 62.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 69.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,154 GBP|Low: £3,080 GBP|High: £5,724 GBP|Avg: £3,867 GBP
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 4, 2026
Retailer 4£3,080 GBP
Retailer 5£3,092 GBP
Retailer 2£3,258 GBP
Retailer 6£3,674 GBP
Retailer 3£3,776 GBP
Retailer 8£4,019 GBP
Retailer 9£4,019 GBP
Jared£4,154 GBP
Retailer 7£5,724 GBP

13 data points across 9 retailers

8 retailers£3,080 GBP to £4,154 GBP

B
Cheapest Retailer
-
£3,080 GBP
B
Retailer 2
-
£3,092 GBP
View
B
Retailer 3
-
£3,258 GBP
View
B
Retailer 4
-
£3,674 GBP
View
B
Retailer 5
-
£3,776 GBP
View
C
Retailer 6
-
£4,019 GBP
View
C
Retailer 7
-
£4,019 GBP
View
Most Expensive
C
Jared
139952717 · Nov 6
£4,154 GBP
$5,560 USD
View
7 more retailers have this diamond
Prices start from £3,080 GBPSave up to £1,074 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.

B
1.21ct Cushion
£3,080 GBP