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Cushion|Lab Grown|IGI

1.51ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG836617524

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836617524

Diamond specifications and retailer prices

From $612 CAD
$438 USD
As of October 25, 2026
Save $2,797 CAD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,408 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion 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 LG836617524 or 836617524. Listed at 17 retailers as of October 25, 2026, with prices from $612 to $3,408, a $2,797 spread on the same certified stone. Brilliant Earth lists it at $3,408. 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 angle34.2°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617524
Dimensions8.56 × 5.78 × 3.84 mm
L/W Ratio1.48
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
8.56 mm5.78 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617524
Side View
Table 62.0%Crown 34.2°Girdle: MED-THKPavilion 41.4°Culet: NoneDepth 66.4%

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 25
Current: $3,408 CAD|Low: $612 CAD|High: $4,037 CAD|Avg: $1,804 CAD|-15.6%
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
October 30, 2026
Retailer 5$612 CAD
Retailer 17$633 CAD
Retailer 15$922 CAD
Retailer 6$967 CAD
Retailer 4$981 CAD
Retailer 14$1,051 CAD
Retailer 10$1,100 CAD
Retailer 11$1,228 CAD
Retailer 13$1,419 CAD
Retailer 3$1,444 CAD
Retailer 7$2,023 CAD
Retailer 2$2,136 CAD
Retailer 12$2,402 CAD
Retailer 9$2,535 CAD
Retailer 16$3,346 CAD
Retailer 8$3,361 CAD
Brilliant Earth$3,408 CAD

21 data points across 17 retailers

17 retailers$612 CAD to $3,408 CAD

A
Cheapest Retailer
-
$612 CAD
$438 USD
Retailer 2
-
$633 CAD
£357 GBP
View
Price last confirmed 13 days ago
A
Retailer 3
-
$922 CAD
$660 USD
View
A
Retailer 4
-
$967 CAD
$692 USD
View
A
Retailer 5
-
$981 CAD
$702 USD
View
A
Retailer 6
-
$1,051 CAD
ZAR 12,150 ZAR
View
A
Retailer 7
-
$1,100 CAD
£620 GBP
View
A
Retailer 8
-
$1,228 CAD
€837 EUR
View
A
Retailer 9
-
$1,419 CAD
A$1,563 AUD
View
A
Retailer 10
-
$1,444 CAD
$1,034 USD
View
B+
Retailer 11
-
$2,023 CAD
$1,448 USD
View
B+
Retailer 12
-
$2,136 CAD
$1,529 USD
View
B+
Retailer 13
-
$2,402 CAD
£1,354 GBP
View
B+
Retailer 14
-
$2,535 CAD
SGD 2,452 SGD
View
Retailer 15
-
$3,346 CAD
$2,395 USD
View
Price last confirmed 9 days ago
B
Retailer 16
-
$3,361 CAD
$2,406 USD
View
Most Expensive
B+
Brilliant Earth
21738552A · Oct 30
$3,408 CAD
$2,440 USD
View
16 more retailers have this diamond
Prices start from $612 CADSave up to $2,797 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 Cushion
$612 CAD