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Radiant|Lab Grown|IGI

1.22ct E SI1 Radiant Lab Grown Diamond

E/SI1 • IGI LG651465855

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG651465855

Diamond specifications and retailer prices

From $664 CAD
£372 GBP
As of November 5, 2026
1 retailer carries this diamond
Only listing: $664 CAD at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamond Quarter

About this 1.22ct lab-grown radiant diamond

This 1.22ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included) and certified by IGI LG651465855 or 651465855. Listed at a single retailer as of November 5, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
E
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.4°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651465855
Dimensions7.31 × 5.39 × 3.64 mm
L/W Ratio1.36
Top View
7.31 mm5.39 mm1.22 ctE / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651465855
Side View
Table 66.0%Crown 43.4°Girdle: MediumPavilion 35.8°CuletDepth 67.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $228 CAD|Low: $173 CAD|High: $329 CAD|Avg: $261 CAD
March 16, 2026
Retailer 1$228 CAD

14 data points across 1 retailer

1 retailer

B
Diamond Quarter
1.22SI1ELG555273N · Nov 5
$664 CAD
£372 GBP
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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
1.22ct Radiant
$664 CAD