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Radiant|Lab Grown|IGI

1.51ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG825630053

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

Certificate IGI LG825630053

Diamond specifications and retailer prices

From $392 CAD
As of November 6, 2026
Save $859 CAD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,576 CAD at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG825630053 or 825630053. Listed at 12 retailers as of November 5, 2026, with a 219% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle45.6°
Pavilion angle30.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825630053
Dimensions7.45 × 6.17 × 3.70 mm
L/W Ratio1.21
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.45 mm6.17 mm1.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG825630053
Side View
Table 71.0%Crown 45.6°Girdle: MED-STKPavilion 30.8°Culet: NoneDepth 60.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $392 CAD|Low: $252 CAD|High: $2,405 CAD|Avg: $930 CAD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
November 6, 2026
Retailer 2$277 CAD
Retailer 1$392 CAD
Retailer 11$519 CAD
Retailer 4$535 CAD
Retailer 9$550 CAD
Retailer 12$550 CAD
Retailer 7$643 CAD
Retailer 6$760 CAD
Retailer 5$1,020 CAD
Retailer 3$1,068 CAD
Retailer 8$1,252 CAD
Retailer 10$1,445 CAD
Reve Diamonds$1,576 CAD

38 data points across 13 retailers

12 retailers$392 CAD to $1,252 CAD

A
Cheapest Retailer
-
$392 CAD
A
Retailer 2
-
$519 CAD
View
Retailer 3
-
$535 CAD
View
Price last confirmed 15 days ago
Retailer 4
-
$550 CAD
View
Price last confirmed 13 days ago
Retailer 5
-
$550 CAD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$643 CAD
View
B+
Retailer 7
-
$760 CAD
View
B+
Retailer 8
-
$1,020 CAD
View
Retailer 9
-
$1,068 CAD
View
Price last confirmed 11 days ago
B
Retailer 10
-
$1,252 CAD
View
Retailer 11
-
$1,445 CAD
View
Price last confirmed 13 days ago
Most Expensive
Reve Diamonds
9925E2399 · Oct 25
$1,576 CAD
$1,120 USD
View
Price last confirmed 12 days ago
11 more retailers have this diamond
Prices start from $392 CADSave up to $859 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.

A
1.51ct Radiant
$392 CAD