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Cushion|Natural|IGI

1.21ct F SI2 Cushion Natural Diamond

VG • F/SI2 • IGI 799674555

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI 799674555

Diamond specifications and retailer prices

From £1,083 GBP
$1,449 USD
As of November 6, 2026
2 retailers carry this diamond
Most expensive: £1,083 GBP at The Diamond Guys
View at The Diamond Guys

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 799674555. Listed at 2 retailers as of November 6, 2026. 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
F
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle37°
OriginNatural
Grading LabIGI
CertificateIGI 799674555
Dimensions6.25 × 5.66 × 4.03 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
Top View
6.25 mm5.66 mm1.21 ctF / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 799674555
Side View
Table 63.0%Crown 38.8°Girdle: MED-THKPavilion 37°Culet: NoneDepth 71.2%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £1,031 GBP|Low: £648 GBP|High: £1,948 GBP|Avg: £1,211 GBP|-17.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
The Diamond Guys
September 4, 2026
Retailer 5£648 GBP
Retailer 2£946 GBP
Retailer 4£989 GBP
Retailer 1£1,031 GBP
The Diamond Guys£1,083 GBP
Retailer 3£1,310 GBP
Retailer 6£1,339 GBP
Retailer 7£1,728 GBP

45 data points across 8 retailers

2 retailers

Retailer 1
-
£946 GBP
Price last confirmed 62 days ago
Most Expensive
B+
The Diamond Guys
1959625654 · Nov 6
£1,083 GBP
$1,449 USD
View
1 more retailer has this diamond

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
£1,083 GBP