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Radiant|Lab Grown|IGI

2.51ct G SI1 Radiant Lab Grown Diamond

G/SI1 • IGI LG648422351

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

Certificate IGI LG648422351

Diamond specifications and retailer prices

From €754 EUR
£663 GBP
As of October 31, 2026
1 retailer carries this diamond
Only listing: €754 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 2.51ct lab-grown radiant diamond

This 2.51ct lab-grown radiant sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included) and certified by IGI LG648422351 or 648422351. 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. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
G
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.8°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648422351
Dimensions9.52 × 6.62 × 4.51 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.52 mm6.62 mm2.51 ctG / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648422351
Side View
Table 63.0%Crown 44.8°Girdle: MediumPavilion 33.8°CuletDepth 68.1%

Caratlytics Score

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

Last verified: Oct 31
Current: €283 EUR|Low: €242 EUR|High: €457 EUR|Avg: €378 EUR|-11.0%
March 14, 2026
Retailer 1€283 EUR

13 data points across 1 retailer

1 retailer

B+
Diamond Quarter
2.51SI1GLG514FFDN · Oct 31
€754 EUR
£663 GBP
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B+
2.51ct Radiant
€754 EUR