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Radiant|Lab Grown|IGI

4.02ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG679517827

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

Certificate IGI LG679517827

Diamond specifications and retailer prices

From €1,409 EUR
£1,244 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: €1,409 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 4.02ct lab-grown radiant diamond

This 4.02ct 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 LG679517827 or 679517827. Listed at a single retailer as of November 2, 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

4.02
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.6°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG679517827
Dimensions11.39 × 7.86 × 5.13 mm
L/W Ratio1.45
Culet sizePointed
Top View
11.39 mm7.86 mm4.02 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG679517827
Side View
Table 67.0%Crown 45.6°Girdle: MediumPavilion 34.4°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: Nov 2
Current: €1,571 EUR|Low: €275 EUR|High: €5,777 EUR|Avg: €1,320 EUR|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
July 15, 2026
Retailer 2€544 EUR
Retailer 9€629 EUR
Retailer 10€668 EUR
Retailer 4€760 EUR
Retailer 6€868 EUR
Retailer 8€919 EUR
Retailer 5€1,070 EUR
Retailer 1€1,571 EUR
Retailer 7€2,946 EUR
Retailer 3€3,584 EUR

68 data points across 10 retailers

1 retailer

B
Diamond Quarter
4.02SI1FLG2780ECN · Nov 2
€1,409 EUR
£1,244 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
4.02ct Radiant
€1,409 EUR