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Cushion|Lab Grown|IGI

1.51ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG825661104

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG825661104

Diamond specifications and retailer prices

From $658 CAD
£371 GBP
As of November 2, 2026
Save $3,325 CAD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,983 CAD at Brilliant Earth · As of November 3, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825661104 or 825661104. Listed at 17 retailers as of November 2, 2026, with prices from $658 to $3,983, a $3,325 spread on the same certified stone. Brilliant Earth lists it at $3,983. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle32.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825661104
Dimensions8.63 × 5.81 × 3.73 mm
L/W Ratio1.49
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
8.63 mm5.81 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825661104
Side View
Table 60.0%Crown 34°Girdle: STK-THKPavilion 32.9°Culet: NoneDepth 64.2%

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: Nov 2
Current: $3,983 CAD|Low: $622 CAD|High: $4,710 CAD|Avg: $1,736 CAD|-15.4%
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
November 3, 2026
Retailer 4$622 CAD
Retailer 10$658 CAD
Retailer 3$943 CAD
Retailer 7$996 CAD
Retailer 11$1,073 CAD
Retailer 2$1,121 CAD
Retailer 13$1,249 CAD
Retailer 6$1,438 CAD
Retailer 14$1,444 CAD
Retailer 9$1,568 CAD
Retailer 5$2,057 CAD
Retailer 12$2,432 CAD
Retailer 8$2,848 CAD
Retailer 15$3,668 CAD
Brilliant Earth$3,983 CAD

33 data points across 15 retailers

17 retailers$658 CAD to $3,983 CAD

Retailer 1
-
$622 CAD
$445 USD
Price last confirmed 9 days ago
A
Retailer 2
-
$658 CAD
£371 GBP
View
A
Retailer 3
-
$943 CAD
$675 USD
View
A
Retailer 4
-
$996 CAD
$713 USD
View
A
Retailer 5
-
$1,073 CAD
ZAR 12,403 ZAR
View
A
Retailer 6
-
$1,121 CAD
£632 GBP
View
A
Retailer 7
-
$1,249 CAD
€851 EUR
View
A
Retailer 8
-
$1,438 CAD
$1,029 USD
View
A
Retailer 9
-
$1,444 CAD
A$1,590 AUD
View
A
Retailer 10
-
$1,568 CAD
$1,122 USD
View
B+
Retailer 11
-
$2,057 CAD
$1,472 USD
View
B+
Retailer 12
-
$2,432 CAD
£1,370 GBP
View
B+
Retailer 13
-
$2,593 CAD
SGD 2,507 SGD
View
B+
Retailer 14
-
$2,848 CAD
$2,038 USD
View
B
Retailer 15
-
$3,529 CAD
$2,525 USD
View
Retailer 16
-
$3,668 CAD
$2,625 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
21612279A · Nov 3
$3,983 CAD
$2,850 USD
View
16 more retailers have this diamond
Prices start from $658 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 Cushion
$658 CAD