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Radiant|Lab Grown|IGI

2.56ct G SI1 Radiant Lab Grown Diamond

EX • G/SI1 • IGI LG647493814

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

Certificate IGI LG647493814

Diamond specifications and retailer prices

From $773 USD
£608 GBP
As of October 31, 2026
1 retailer carries this diamond
Only listing: $773 USD 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 2.56ct lab-grown radiant diamond

This 2.56ct lab-grown radiant sits in the two to three carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG647493814 or 647493814. 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

2.56
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG647493814
Dimensions9.62 × 6.74 × 4.58 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.62 mm6.74 mm2.56 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG647493814
Side View
Table 66.0%Crown 41°Girdle: MediumPavilion 35.7°CuletDepth 68.0%

Caratlytics Score

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

Last verified: Oct 31
Current: $773 USD|Low: $773 USD|High: $773 USD|Avg: $773 USD
September 26, 2026
Diamond Quarter$773 USD

1 data point across 1 retailer

1 retailer

B+
Diamond Quarter
2.56SI1GLG1451AAN · Oct 31
$773 USD
£608 GBP
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B+
2.56ct Radiant
$773 USD