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Radiant|Lab Grown|IGI

1.21ct E VVS1 Radiant Lab Grown Diamond

E/VVS1 • IGI LG621408051

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

Certificate IGI LG621408051

Diamond specifications and retailer prices

From $815 USD
£642 GBP
As of October 28, 2026
1 retailer carries this diamond
Only listing: $815 USD 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 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included) and certified by IGI LG621408051 or 621408051. Listed at a single retailer as of October 28, 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

1.21
Carat
E
Color
VVS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.9°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621408051
Dimensions7.64 × 5.18 × 3.38 mm
L/W Ratio1.47
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.64 mm5.18 mm1.21 ctE / VVS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621408051
Side View
Table 64.0%Crown 45.9°Girdle: Slightly ThickPavilion 33.7°Culet: NoneDepth 65.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 28
Current: $764 USD|Low: $764 USD|High: $764 USD|Avg: $764 USD
December 25, 2025
Retailer 1$764 USD

1 data point across 1 retailer

1 retailer

B
Diamond Quarter
1.21VVS1ELG51607DN · Oct 28
$815 USD
£642 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
1.21ct Radiant
$815 USD