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Cushion|Lab Grown|IGI

1.45ct D FL Cushion Lab Grown Diamond

GD • D/FL • IGI LG800677337

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800677337

Diamond specifications and retailer prices

From $747 CAD
$534 USD
As of October 28, 2026
Save $5,033 CAD (87%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,780 CAD at Brilliant Earth · As of October 29, 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 FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG800677337 or 800677337. Listed at 10 retailers as of October 28, 2026, with prices from $747 to $5,780, a $5,033 spread on the same certified stone. Brilliant Earth lists it at $5,780. 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

1.45
Carat
D
Color
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800677337
Dimensions7.32 × 5.96 × 4.23 mm
L/W Ratio1.23
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
7.32 mm5.96 mm1.45 ctD / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800677337
Side View
Table 60.0%Crown 35.1°Girdle: STK-THKPavilion 36.8°Culet: NoneDepth 71.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $5,780 CAD|Low: $535 CAD|High: $5,948 CAD|Avg: $2,630 CAD|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 12$747 CAD
Retailer 6$934 CAD
Retailer 10$1,078 CAD
Retailer 8$1,146 CAD
Retailer 11$1,247 CAD
Retailer 2$1,298 CAD
Retailer 3$2,270 CAD
Retailer 5$2,958 CAD
Retailer 9$3,072 CAD
Retailer 4$4,509 CAD
Retailer 7$5,193 CAD
Brilliant Earth$5,780 CAD

25 data points across 12 retailers

10 retailers$747 CAD to $5,780 CAD

A
Cheapest Retailer
-
$747 CAD
$534 USD
Final sale: no returns
A
Retailer 2
-
$934 CAD
$667 USD
View
A
Retailer 3
-
$1,078 CAD
$770 USD
View
B+
Retailer 4
-
$1,146 CAD
$819 USD
View
A
Retailer 5
-
$1,247 CAD
$891 USD
View
A
Retailer 6
-
$1,298 CAD
€883 EUR
View
B
Retailer 7
-
$2,958 CAD
£1,664 GBP
View
Retailer 8
-
$3,072 CAD
$2,195 USD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$5,193 CAD
$3,710 USD
View
Most Expensive
B
Brilliant Earth
20107591Y · Oct 29
$5,780 CAD
$4,130 USD
View
9 more retailers have this diamond
Prices start from $747 CADSave up to $5,033 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
$747 CAD