Radiant|Lab Grown|IGI

1.51ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG641494187

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

Certificate IGI LG641494187

Diamond specifications and retailer prices

From $397 CAD
$284 USD
As of October 30, 2026
Save $3,591 CAD (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,988 CAD at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

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 LG641494187 or 641494187. Listed at 24 retailers as of October 30, 2026, with prices from $397 to $3,988, a $3,591 spread on the same certified stone. Diamond Quarter lists it at $3,988. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle33.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG641494187
Dimensions8.26 × 5.61 × 3.82 mm
L/W Ratio1.47
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
8.26 mm5.61 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG641494187
Side View
Table 61.0%Crown 33.2°Girdle: MediumPavilion 33.1°Culet: NoneDepth 68.1%

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: Oct 30
Current: $969 CAD|Low: $381 CAD|High: $3,520 CAD|Avg: $1,336 CAD|-14.7%
Retailer 1
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Retailer 23
October 31, 2026
Retailer 2$397 CAD
Retailer 9$444 CAD
Retailer 23$461 CAD
Retailer 3$493 CAD
Retailer 13$493 CAD
Retailer 12$561 CAD
Retailer 14$697 CAD
Retailer 19$712 CAD
Retailer 8$809 CAD
Retailer 6$856 CAD
Retailer 18$934 CAD
Retailer 1$969 CAD
Retailer 4$1,106 CAD
Retailer 17$1,268 CAD
Retailer 22$1,513 CAD
Retailer 7$1,748 CAD
Retailer 16$1,975 CAD
Retailer 11$2,023 CAD
Retailer 10$2,038 CAD
Retailer 15$2,108 CAD
Retailer 21$2,191 CAD
Retailer 20$3,017 CAD
Retailer 5$3,520 CAD

33 data points across 23 retailers

24 retailers$397 CAD to $3,988 CAD

A
Cheapest Retailer
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$397 CAD
$284 USD
A
Retailer 2
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$444 CAD
$318 USD
View
Final sale: no returns
A
Retailer 3
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$461 CAD
$330 USD
View
A
Retailer 4
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$493 CAD
$353 USD
View
A
Retailer 5
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$493 CAD
$353 USD
View
A
Retailer 6
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$561 CAD
£316 GBP
View
A
Retailer 7
-
$697 CAD
HK$3,900 HKD
View
A
Retailer 8
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$712 CAD
$510 USD
View
A
Retailer 9
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$809 CAD
$579 USD
View
A
Retailer 10
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$856 CAD
$613 USD
View
A
Retailer 11
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$934 CAD
ZAR 10,803 ZAR
View
A
Retailer 12
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$969 CAD
£546 GBP
View
A
Retailer 13
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$1,106 CAD
$792 USD
View
A
Retailer 14
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$1,268 CAD
A$1,396 AUD
View
B+
Retailer 15
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$1,513 CAD
$1,083 USD
View
B+
Retailer 16
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$1,748 CAD
$1,251 USD
View
B+
Retailer 17
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$1,975 CAD
$1,414 USD
View
B+
Retailer 18
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$2,023 CAD
SGD 1,957 SGD
View
B+
Retailer 19
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$2,038 CAD
$1,459 USD
View
B+
Retailer 20
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$2,108 CAD
£1,188 GBP
View
B+
Retailer 21
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$2,191 CAD
£1,235 GBP
View
Retailer 22
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$3,017 CAD
$2,160 USD
View
Price last confirmed 13 days ago
B
Retailer 23
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$3,520 CAD
$2,520 USD
View
Most Expensive
B
Diamond Quarter
1.51IFELG87DFCEN · Oct 31
$3,988 CAD
£2,248 GBP
View
23 more retailers have this diamond
Prices start from $397 CADSave up to $3,591 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
$397 CAD