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Cushion|Lab Grown|IGI

1.38ct D IF Cushion Lab Grown Diamond

D/IF • IGI LG783670536

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG783670536

Diamond specifications and retailer prices

From $612 CAD
$438 USD
As of October 25, 2026
Save $2,713 CAD (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,325 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.38ct lab-grown cushion diamond

This 1.38ct 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) and certified by IGI LG783670536 or 783670536. Listed at 19 retailers as of October 25, 2026, with prices from $612 to $3,325, a $2,713 spread on the same certified stone. Brilliant Earth lists it at $3,325. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.38
Carat
D
Color
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783670536
Dimensions6.37 × 6.37 × 6.55 mm
L/W Ratio1.00
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
6.37 mm6.37 mm1.38 ctD / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783670536
Side View
Table 63.0%Crown 35°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 67.5%

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: $3,325 CAD|Low: $552 CAD|High: $3,702 CAD|Avg: $1,592 CAD|-10.2%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 8$612 CAD
Retailer 14$646 CAD
Retailer 12$703 CAD
Retailer 4$719 CAD
Retailer 18$968 CAD
Retailer 2$1,002 CAD
Retailer 3$1,050 CAD
Retailer 9$1,064 CAD
Retailer 15$1,128 CAD
Retailer 10$1,404 CAD
Retailer 19$1,485 CAD
Retailer 7$1,552 CAD
Retailer 16$2,068 CAD
Retailer 13$2,386 CAD
Retailer 6$2,402 CAD
Retailer 17$2,427 CAD
Retailer 5$2,466 CAD
Retailer 11$2,817 CAD
Brilliant Earth$3,325 CAD

23 data points across 19 retailers

19 retailers$612 CAD to $3,325 CAD

A
Cheapest Retailer
-
$612 CAD
$438 USD
A
Retailer 2
-
$646 CAD
£364 GBP
View
A
Retailer 3
-
$703 CAD
$503 USD
View
Final sale: no returns
A
Retailer 4
-
$719 CAD
$515 USD
View
A
Retailer 5
-
$968 CAD
€660 EUR
View
A
Retailer 6
-
$1,002 CAD
$717 USD
View
A
Retailer 7
-
$1,050 CAD
ZAR 12,149 ZAR
View
A
Retailer 8
-
$1,064 CAD
$762 USD
View
A
Retailer 9
-
$1,128 CAD
£636 GBP
View
B+
Retailer 10
-
$1,404 CAD
$1,005 USD
View
B+
Retailer 11
-
$1,485 CAD
A$1,635 AUD
View
B+
Retailer 12
-
$1,552 CAD
$1,111 USD
View
B+
Retailer 13
-
$2,068 CAD
$1,480 USD
View
B
Retailer 14
-
$2,386 CAD
$1,708 USD
View
Retailer 15
-
$2,402 CAD
£1,354 GBP
View
Price last confirmed 11 days ago
B
Retailer 16
-
$2,427 CAD
£1,368 GBP
View
Retailer 17
-
$2,466 CAD
$1,765 USD
View
Price last confirmed 11 days ago
Retailer 18
-
$2,817 CAD
A$3,102 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
18445978A · Oct 30
$3,325 CAD
$2,380 USD
View
18 more retailers have this diamond
Prices start from $612 CADSave up to $2,713 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
1.38ct Cushion
$612 CAD