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Radiant|Lab Grown|IGI

1.51ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG605337352

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

Certificate IGI LG605337352

Diamond specifications and retailer prices

From $405 CAD
$290 USD
As of October 30, 2026
Save $3,325 CAD (89%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $3,730 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG605337352 or 605337352. Listed at 25 retailers as of October 30, 2026, with prices from $405 to $3,730, a $3,325 spread on the same certified stone. Brilliant Earth lists it at $3,730. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.9°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605337352
Dimensions8.05 × 5.77 × 3.84 mm
L/W Ratio1.40
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
8.05 mm5.77 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605337352
Side View
Table 67.0%Crown 46.9°Girdle: MediumPavilion 36.3°Culet: NoneDepth 66.6%

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: $3,730 CAD|Low: $386 CAD|High: $4,247 CAD|Avg: $1,390 CAD|-9.8%
Brilliant Earth
Retailer 2
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Retailer 22
October 31, 2026
Retailer 6$405 CAD
Retailer 18$454 CAD
Retailer 3$469 CAD
Retailer 9$503 CAD
Retailer 14$503 CAD
Retailer 22$719 CAD
Retailer 11$826 CAD
Retailer 21$863 CAD
Retailer 8$866 CAD
Retailer 16$889 CAD
Retailer 2$930 CAD
Retailer 20$1,169 CAD
Retailer 10$1,349 CAD
Retailer 5$1,414 CAD
Retailer 7$1,615 CAD
Retailer 15$1,683 CAD
Retailer 13$1,932 CAD
Retailer 17$1,998 CAD
Retailer 19$2,024 CAD
Retailer 12$2,069 CAD
Retailer 4$3,185 CAD
Brilliant Earth$3,730 CAD

35 data points across 22 retailers

25 retailers$405 CAD to $3,730 CAD

A
Cheapest Retailer
-
$405 CAD
$290 USD
A
Retailer 2
-
$454 CAD
$325 USD
View
Final sale: no returns
A
Retailer 3
-
$469 CAD
$336 USD
View
A
Retailer 4
-
$503 CAD
$360 USD
View
A
Retailer 5
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$503 CAD
$360 USD
View
A
Retailer 6
-
$719 CAD
$515 USD
View
A
Retailer 7
-
$826 CAD
$591 USD
View
A
Retailer 8
-
$863 CAD
ZAR 9,982 ZAR
View
A
Retailer 9
-
$866 CAD
$620 USD
View
A
Retailer 10
-
$889 CAD
£501 GBP
View
A
Retailer 11
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$930 CAD
€634 EUR
View
A
Retailer 12
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$1,169 CAD
A$1,287 AUD
View
A
Retailer 13
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$1,349 CAD
$966 USD
View
B+
Retailer 14
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$1,414 CAD
$1,012 USD
View
B+
Retailer 15
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$1,615 CAD
$1,156 USD
View
B+
Retailer 16
-
$1,654 CAD
$1,184 USD
View
B+
Retailer 17
-
$1,683 CAD
$1,205 USD
View
B+
Retailer 18
-
$1,847 CAD
$1,322 USD
View
B+
Retailer 19
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$1,932 CAD
$1,383 USD
View
B+
Retailer 20
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$1,992 CAD
£1,123 GBP
View
B+
Retailer 21
-
$1,998 CAD
A$2,200 AUD
View
B+
Retailer 22
-
$2,024 CAD
£1,141 GBP
View
B+
Retailer 23
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$2,069 CAD
$1,481 USD
View
Retailer 24
-
$3,185 CAD
$2,280 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
14717190A · Oct 30
$3,730 CAD
$2,670 USD
View
24 more retailers have this diamond
Prices start from $405 CADSave up to $3,325 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
$405 CAD