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2.57ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG648425779

Shape and cutting style on the report: Round brilliant

Certificate IGI LG648425779

Diamond specifications and retailer prices

From €719 EUR
$803 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: €719 EUR at B2C Jewels
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 B2C Jewels

About this 2.57ct lab-grown round diamond

This 2.57ct lab-grown round 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 LG648425779 or 648425779. Listed at a single retailer as of November 1, 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648425779
Dimensions8.75 × 8.79 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.75 mm8.79 mm2.57 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648425779
Side View
Table 59.0%Crown 34.3°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.1%

Caratlytics Score

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

Last verified: Nov 1
Current: €719 EUR|Low: €693 EUR|High: €1,144 EUR|Avg: €858 EUR|-37.2%
September 23, 2026
B2C Jewels€719 EUR

4 data points across 1 retailer

1 retailer

B+
B2C Jewels
25335853 · Nov 1
€719 EUR
$803 USD
View

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B+
2.57ct Round
€719 EUR