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Heart|Lab Grown|IGI

1.51ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG835608021

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG835608021

Diamond specifications and retailer prices

From $434 CAD
$310 USD
As of October 27, 2026
Save $3,723 CAD (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,157 CAD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart 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 LG835608021 or 835608021. Listed at 21 retailers as of October 27, 2026, with prices from $434 to $4,157, a $3,723 spread on the same certified stone. Brilliant Earth lists it at $4,157. 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 angle38.3°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835608021
Dimensions6.66 × 7.89 × 4.72 mm
L/W Ratio1.18
Girdle conditionFaceted
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
6.66 mm7.89 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835608021
Side View
Table 57.0%Crown 38.3°Girdle: STK-THKPavilion 37.8°Culet: NoneDepth 59.8%

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 27
Current: $4,157 CAD|Low: $406 CAD|High: $4,157 CAD|Avg: $1,402 CAD
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
Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 3$434 CAD
Retailer 6$537 CAD
Retailer 13$540 CAD
Retailer 14$557 CAD
Retailer 9$595 CAD
Retailer 17$756 CAD
Retailer 4$876 CAD
Retailer 16$924 CAD
Retailer 12$957 CAD
Retailer 8$1,004 CAD
Retailer 15$1,253 CAD
Retailer 7$1,428 CAD
Retailer 19$1,652 CAD
Retailer 2$1,803 CAD
Retailer 10$2,067 CAD
Retailer 18$2,158 CAD
Retailer 5$2,161 CAD
Retailer 11$3,312 CAD
Brilliant Earth$4,157 CAD

27 data points across 19 retailers

21 retailers$434 CAD to $4,157 CAD

A
Cheapest Retailer
-
$434 CAD
$310 USD
Retailer 2
-
$528 CAD
$377 USD
View
Price last confirmed 31 days ago
A
Retailer 3
-
$537 CAD
$384 USD
View
A
Retailer 4
-
$540 CAD
$386 USD
View
A
Retailer 5
-
$557 CAD
£313 GBP
View
A
Retailer 6
-
$595 CAD
$425 USD
View
Final sale: no returns
A
Retailer 7
-
$756 CAD
$540 USD
View
A
Retailer 8
-
$876 CAD
$626 USD
View
A
Retailer 9
-
$924 CAD
ZAR 10,664 ZAR
View
A
Retailer 10
-
$957 CAD
£538 GBP
View
A
Retailer 11
-
$1,004 CAD
$717 USD
View
A
Retailer 12
-
$1,253 CAD
A$1,377 AUD
View
A
Retailer 13
-
$1,428 CAD
$1,020 USD
View
B+
Retailer 14
-
$1,652 CAD
$1,180 USD
View
Retailer 15
-
$1,770 CAD
$1,265 USD
View
Price last confirmed 29 days ago
B+
Retailer 16
-
$1,803 CAD
$1,288 USD
View
B+
Retailer 17
-
$2,067 CAD
$1,477 USD
View
B+
Retailer 18
-
$2,158 CAD
£1,214 GBP
View
B+
Retailer 19
-
$2,161 CAD
$1,544 USD
View
Retailer 20
-
$3,312 CAD
A$3,641 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
21696528A · Oct 28
$4,157 CAD
$2,970 USD
View
20 more retailers have this diamond
Prices start from $434 CADSave up to $3,723 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 Heart
$434 CAD