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Radiant|Lab Grown|IGI

3.09ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG669412858

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

Certificate IGI LG669412858

Diamond specifications and retailer prices

From $1,780 CAD
£997 GBP
As of November 5, 2026
1 retailer carries this diamond
Only listing: $1,780 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 3.09ct lab-grown radiant diamond

This 3.09ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG669412858 or 669412858. 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. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.09
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669412858
Dimensions10.38 × 7.13 × 4.87 mm
L/W Ratio1.46
Culet sizePointed
Top View
10.38 mm7.13 mm3.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669412858
Side View
Table 63.0%Crown 42.1°Girdle: MediumPavilion 35.6°Culet: NoneDepth 68.3%

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: $1,809 CAD|Low: $367 CAD|High: $7,103 CAD|Avg: $1,705 CAD|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
July 18, 2026
Retailer 2$834 CAD
Retailer 10$875 CAD
Retailer 4$994 CAD
Retailer 9$1,104 CAD
Retailer 6$1,193 CAD
Retailer 8$1,236 CAD
Retailer 5$1,495 CAD
Retailer 1$1,809 CAD
Retailer 7$3,419 CAD
Retailer 3$7,103 CAD

68 data points across 10 retailers

1 retailer

B
Diamond Quarter
3.09SI1ELG5880AFN · Nov 5
$1,780 CAD
£997 GBP
View

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
3.09ct Radiant
$1,780 CAD