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Radiant|Lab Grown|IGI

1.11ct F SI1 Radiant Lab Grown Diamond

VG • F/SI1 • IGI LG668459506

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

Certificate IGI LG668459506

Diamond specifications and retailer prices

From $432 USD
As of November 2, 2026
Save $51 USD (11%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $483 USD at Diamond Quarter · As of November 2, 2026
View at Diamond Quarter

About this 1.11ct lab-grown radiant diamond

This 1.11ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG668459506 or 668459506. Listed at 2 retailers as of November 2, 2026, with a relatively tight 12% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.11
Carat
F
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG668459506
Dimensions7.16 × 5.07 × 3.48 mm
L/W Ratio1.41
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.16 mm5.07 mm1.11 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG668459506
Side View
Table 63.0%Crown 40°Girdle: Slightly ThickPavilion 34.7°Culet: NoneDepth 68.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $432 USD|Low: $426 USD|High: $617 USD|Avg: $487 USD|-30.0%
September 23, 2026
Retailer 1$432 USD

4 data points across 1 retailer

2 retailers$432 USD to $483 USD

B+
Cheapest Retailer
-
$432 USD
Most Expensive
B
Diamond Quarter
1.11SI1FLG0666E5N · Nov 2
$483 USD
£381 GBP
View
1 more retailer has this diamond
Prices start from $432 USDSave up to $51 USD

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+
1.11ct Radiant
$432 USD