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Radiant|Lab Grown|IGI

2.50ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG667416745

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

Certificate IGI LG667416745

Diamond specifications and retailer prices

From $915 USD
£720 GBP
As of October 29, 2026
2 retailers carry this diamond
Most expensive: $2,223 USD 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 LG667416745 or 667416745. Listed at 2 retailers as of October 29, 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG667416745
Dimensions9.64 × 6.75 × 4.51 mm
L/W Ratio1.43
Culet sizePointed
Top View
9.64 mm6.75 mm2.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG667416745
Side View
Table 65.0%Crown 42.3°Girdle: MediumPavilion 34.6°Culet: NoneDepth 66.8%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $629 USD|Low: $213 USD|High: $2,450 USD|Avg: $913 USD|-4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
June 15, 2026
Retailer 7$489 USD
Retailer 1$629 USD
Retailer 6$630 USD
Retailer 4$682 USD
Retailer 5$726 USD
Retailer 3$892 USD
Retailer 2$1,089 USD
Retailer 9$1,245 USD
Retailer 8$2,450 USD

67 data points across 9 retailers

2 retailers

B+
Cheapest Retailer
-
$915 USD
£720 GBP
Most Expensive
Rare Carat
667416745
$2,223 USD
View
1 more retailer has this diamond
Prices start from $915 USD

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
$915 USD