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Radiant|Lab Grown|IGI

1.50ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG735583311

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

Certificate IGI LG735583311

Diamond specifications and retailer prices

From $356 CAD
$255 USD
As of October 30, 2026
Save $2,899 CAD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,255 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG735583311 or 735583311. Listed at 16 retailers as of October 30, 2026, with prices from $356 to $3,255, a $2,899 spread on the same certified stone. Brilliant Earth lists it at $3,255. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735583311
Dimensions7.71 × 5.66 × 3.94 mm
L/W Ratio1.36
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.71 mm5.66 mm1.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735583311
Side View
Table 68.0%Crown 44.4°Girdle: MediumPavilion 40.4°Culet: NoneDepth 69.6%

Caratlytics Score

How it works →
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: Oct 30
Current: $3,255 CAD|Low: $306 CAD|High: $4,652 CAD|Avg: $1,554 CAD|-30.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 5$356 CAD
Retailer 6$400 CAD
Retailer 4$413 CAD
Retailer 12$570 CAD
Retailer 11$619 CAD
Retailer 2$622 CAD
Retailer 14$811 CAD
Retailer 10$1,134 CAD
Retailer 16$1,247 CAD
Retailer 13$1,478 CAD
Retailer 7$1,569 CAD
Retailer 8$1,708 CAD
Retailer 9$1,966 CAD
Retailer 15$2,996 CAD
Retailer 3$3,171 CAD
Brilliant Earth$3,255 CAD

35 data points across 16 retailers

16 retailers$356 CAD to $3,255 CAD

A
Cheapest Retailer
-
$356 CAD
$255 USD
A
Retailer 2
-
$400 CAD
$286 USD
View
Final sale: no returns
A
Retailer 3
-
$413 CAD
$296 USD
View
A
Retailer 4
-
$570 CAD
$408 USD
View
B+
Retailer 5
-
$619 CAD
$443 USD
View
A
Retailer 6
-
$622 CAD
$445 USD
View
Retailer 7
-
$811 CAD
€553 EUR
View
Price last confirmed 8 days ago
A
Retailer 8
-
$1,134 CAD
A$1,249 AUD
View
A
Retailer 9
-
$1,247 CAD
$893 USD
View
A
Retailer 10
-
$1,478 CAD
$1,058 USD
View
B+
Retailer 11
-
$1,569 CAD
$1,123 USD
View
B+
Retailer 12
-
$1,708 CAD
$1,223 USD
View
B+
Retailer 13
-
$1,966 CAD
£1,108 GBP
View
Retailer 14
-
$2,996 CAD
$2,145 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
$3,171 CAD
$2,270 USD
View
Most Expensive
B
Brilliant Earth
21405665Y · Oct 30
$3,255 CAD
$2,330 USD
View
15 more retailers have this diamond
Prices start from $356 CADSave up to $2,899 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
1.50ct Radiant
$356 CAD