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Cushion|Lab Grown|IGI

1.45ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG739546475

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG739546475

Diamond specifications and retailer prices

From $562 CAD
$402 USD
As of October 30, 2026
Save $2,875 CAD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,436 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.45ct lab-grown cushion diamond

This 1.45ct lab-grown cushion sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG739546475 or 739546475. Listed at 19 retailers as of October 30, 2026, with prices from $562 to $3,436, a $2,875 spread on the same certified stone. Brilliant Earth lists it at $3,436. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739546475
Dimensions7.67 × 6.04 × 3.99 mm
L/W Ratio1.27
Girdle conditionFaceted
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
7.67 mm6.04 mm1.45 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739546475
Side View
Table 61.0%Crown 36.5°Girdle: STK-THKPavilion 35.1°Culet: NoneDepth 66.1%

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: $3,436 CAD|Low: $562 CAD|High: $4,051 CAD|Avg: $1,687 CAD|-15.2%
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
October 30, 2026
Retailer 9$562 CAD
Retailer 12$831 CAD
Retailer 13$880 CAD
Retailer 5$975 CAD
Retailer 6$1,014 CAD
Retailer 8$1,071 CAD
Retailer 2$1,123 CAD
Retailer 7$1,514 CAD
Retailer 4$2,088 CAD
Retailer 11$2,448 CAD
Retailer 10$2,933 CAD
Retailer 3$3,076 CAD
Brilliant Earth$3,436 CAD

38 data points across 13 retailers

19 retailers$562 CAD to $3,436 CAD

A
Cheapest Retailer
-
$562 CAD
$402 USD
Final sale: no returns
A
Retailer 2
-
$715 CAD
HK$4,000 HKD
View
A
Retailer 3
-
$831 CAD
$595 USD
View
A
Retailer 4
-
$880 CAD
$630 USD
View
A
Retailer 5
-
$975 CAD
$698 USD
View
A
Retailer 6
-
$1,014 CAD
€691 EUR
View
A
Retailer 7
-
$1,071 CAD
ZAR 12,386 ZAR
View
A
Retailer 8
-
$1,123 CAD
£633 GBP
View
A
Retailer 9
-
$1,426 CAD
$1,021 USD
View
A
Retailer 10
-
$1,514 CAD
A$1,667 AUD
View
A
Retailer 11
-
$1,534 CAD
$1,098 USD
View
B+
Retailer 12
-
$1,794 CAD
$1,284 USD
View
B+
Retailer 13
-
$2,060 CAD
$1,475 USD
View
B+
Retailer 14
-
$2,088 CAD
SGD 2,020 SGD
View
B+
Retailer 15
-
$2,380 CAD
$1,704 USD
View
B+
Retailer 16
-
$2,448 CAD
£1,380 GBP
View
Retailer 17
-
$2,933 CAD
$2,100 USD
View
Price last confirmed 12 days ago
Retailer 18
-
$3,076 CAD
A$3,388 AUD
View
Price last confirmed 25 days ago
Most Expensive
B
Brilliant Earth
16164200A · Oct 30
$3,436 CAD
$2,460 USD
View
18 more retailers have this diamond
Prices start from $562 CADSave up to $2,875 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
1.45ct Cushion
$562 CAD