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Radiant|Lab Grown|IGI

4.08ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG687585808

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

Certificate IGI LG687585808

Diamond specifications and retailer prices

From €1,363 EUR
£1,204 GBP
As of October 31, 2026
1 retailer carries this diamond
Only listing: €1,363 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 4.08ct lab-grown radiant diamond

This 4.08ct lab-grown radiant sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG687585808 or 687585808. Listed at a single retailer as of October 31, 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

4.08
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.6°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687585808
Dimensions11.27 × 7.96 × 5.31 mm
L/W Ratio1.42
Culet sizePointed
Top View
11.27 mm7.96 mm4.08 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687585808
Side View
Table 66.0%Crown 45.6°Girdle: MediumPavilion 35.7°Culet: NoneDepth 66.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: €3,013 EUR|Low: €270 EUR|High: €5,867 EUR|Avg: €1,252 EUR|-5.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
June 29, 2026
Retailer 7€615 EUR
Retailer 8€650 EUR
Retailer 2€738 EUR
Retailer 5€860 EUR
Retailer 6€902 EUR
Retailer 4€1,049 EUR
Retailer 1€3,013 EUR
Retailer 3€3,647 EUR

72 data points across 8 retailers

1 retailer

B
Diamond Quarter
4.08SI1FLG086289N · Oct 31
€1,363 EUR
£1,204 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
4.08ct Radiant
€1,363 EUR