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Radiant|Lab Grown|IGI

2.57ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG665443576

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

Certificate IGI LG665443576

Diamond specifications and retailer prices

From €849 EUR
£750 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: €849 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 2.57ct lab-grown radiant diamond

This 2.57ct lab-grown radiant sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG665443576 or 665443576. 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

2.57
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665443576
Dimensions10.17 × 6.92 × 4.32 mm
L/W Ratio1.47
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.17 mm6.92 mm2.57 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665443576
Side View
Table 66.0%Crown 37.7°Girdle: MediumPavilion 33.5°CuletDepth 62.4%

Caratlytics Score

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

Last verified: Nov 2
Current: €849 EUR|Low: €849 EUR|High: €849 EUR|Avg: €849 EUR
September 26, 2026
Diamond Quarter€849 EUR

1 data point across 1 retailer

1 retailer

B+
Diamond Quarter
2.57SI1FLG76EC71N · Nov 2
€849 EUR
£750 GBP
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B+
2.57ct Radiant
€849 EUR