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Cushion|Lab Grown|IGI

1.45ct D IF Cushion Lab Grown Diamond

ID • D/IF • IGI LG838619306

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG838619306

Diamond specifications and retailer prices

From $591 CAD
$423 USD
As of October 30, 2026
Save $2,957 CAD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,548 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 LG838619306 or 838619306. Listed at 15 retailers as of October 30, 2026, with prices from $591 to $3,548, a $2,957 spread on the same certified stone. Brilliant Earth lists it at $3,548. 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 angle35.5°
Pavilion angle36.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838619306
Dimensions8.22 × 5.82 × 3.84 mm
L/W Ratio1.41
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
8.22 mm5.82 mm1.45 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838619306
Side View
Table 65.0%Crown 35.5°Girdle: MED-STKPavilion 36.9°Culet: NoneDepth 66.0%

Caratlytics Score

How it works →
A+
Exceptional
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: $3,548 CAD|Low: $549 CAD|High: $4,079 CAD|Avg: $1,390 CAD|-13.0%
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
October 30, 2026
Retailer 8$591 CAD
Retailer 6$613 CAD
Retailer 9$677 CAD
Retailer 11$715 CAD
Retailer 5$824 CAD
Retailer 2$880 CAD
Retailer 15$962 CAD
Retailer 12$989 CAD
Retailer 3$1,048 CAD
Retailer 10$1,185 CAD
Retailer 13$1,481 CAD
Retailer 4$1,950 CAD
Retailer 14$2,395 CAD
Retailer 7$2,961 CAD
Brilliant Earth$3,548 CAD

19 data points across 15 retailers

15 retailers$591 CAD to $3,548 CAD

A
Cheapest Retailer
-
$591 CAD
$423 USD
Final sale: no returns
A+
Retailer 2
-
$613 CAD
$439 USD
View
A
Retailer 3
-
$677 CAD
£381 GBP
View
A
Retailer 4
-
$715 CAD
HK$4,000 HKD
View
A
Retailer 5
-
$824 CAD
$590 USD
View
A
Retailer 6
-
$880 CAD
$630 USD
View
A
Retailer 7
-
$962 CAD
$689 USD
View
A
Retailer 8
-
$989 CAD
€674 EUR
View
A
Retailer 9
-
$1,048 CAD
ZAR 12,116 ZAR
View
A
Retailer 10
-
$1,185 CAD
£668 GBP
View
A
Retailer 11
-
$1,481 CAD
A$1,631 AUD
View
B+
Retailer 12
-
$1,950 CAD
SGD 1,886 SGD
View
B+
Retailer 13
-
$2,395 CAD
£1,350 GBP
View
Retailer 14
-
$2,961 CAD
$2,120 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21621026A · Oct 30
$3,548 CAD
$2,540 USD
View
14 more retailers have this diamond
Prices start from $591 CADSave up to $2,957 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
$591 CAD