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Radiant|Lab Grown|IGI

2.50ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG677505323

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

Certificate IGI LG677505323

Diamond specifications and retailer prices

From $1,267 CAD
£713 GBP
As of October 28, 2026
2 retailers carry this diamond
Most expensive: $3,112 CAD at Rare Carat
View at Rare Carat

About this 2.5ct lab-grown radiant diamond

This 2.5ct lab-grown radiant sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG677505323 or 677505323. Listed at 2 retailers as of October 28, 2026. 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

2.50
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.3°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677505323
Dimensions9.23 × 6.69 × 4.50 mm
L/W Ratio1.38
Culet sizePointed
Top View
9.23 mm6.69 mm2.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677505323
Side View
Table 66.0%Crown 47.3°Girdle: Slightly ThickPavilion 35°Culet: NoneDepth 67.3%

Caratlytics Score

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

Last verified: Oct 28
Current: $3,112 CAD|Low: $95 CAD|High: $5,780 CAD|Avg: $2,160 CAD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
June 2, 2026
Retailer 2$95 CAD
Retailer 3$553 CAD
Retailer 9$711 CAD
Retailer 4$905 CAD
Retailer 8$938 CAD
Retailer 6$1,177 CAD
Retailer 5$1,533 CAD
Retailer 7$1,721 CAD
Rare Carat$3,112 CAD
Retailer 10$5,780 CAD

57 data points across 10 retailers

2 retailers

B+
Cheapest Retailer
-
$1,267 CAD
£713 GBP
Most Expensive
B
Rare Carat
677505323
$3,112 CAD
$2,223 USD
View
1 more retailer has this diamond
Prices start from $1,267 CAD

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+
2.50ct Radiant
$1,267 CAD