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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 €1,134 EUR
£997 GBP
As of November 5, 2026
1 retailer carries this diamond
Only listing: €1,134 EUR 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
Colour
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: €1,152 EUR|Low: €234 EUR|High: €4,523 EUR|Avg: €1,086 EUR|+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€531 EUR
Retailer 10€557 EUR
Retailer 4€633 EUR
Retailer 9€703 EUR
Retailer 6€760 EUR
Retailer 8€787 EUR
Retailer 5€952 EUR
Retailer 1€1,152 EUR
Retailer 7€2,177 EUR
Retailer 3€4,523 EUR

68 data points across 10 retailers

1 retailer

B
Diamond Quarter
3.09SI1ELG5880AFN · Nov 5
€1,134 EUR
£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
€1,134 EUR