Cushion|Lab Grown|IGI

1.45ct D FL Cushion Lab Grown Diamond

VG • D/FL • IGI LG840634486

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840634486

Diamond specifications and retailer prices

From $542 USD
As of October 30, 2026
Save $2,418 USD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,960 USD 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 FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG840634486 or 840634486. Listed at 15 retailers as of October 30, 2026, with prices from $542 to $2,960, a $2,418 spread on the same certified stone. Brilliant Earth lists it at $2,960. 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
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634486
Dimensions8.25 × 5.55 × 3.85 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
8.25 mm5.55 mm1.45 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634486
Side View
Table 59.0%Crown 34.5°Girdle: STK-VTKPavilion 35.3°Culet: NoneDepth 69.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $2,960 USD|Low: $542 USD|High: $3,400 USD|Avg: $1,547 USD|-12.9%
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 15$542 USD
Retailer 2$596 USD
Retailer 3$811 USD
Retailer 12$875 USD
Retailer 4$904 USD
Retailer 8$957 USD
Retailer 9$969 USD
Retailer 11$993 USD
Retailer 13$1,135 USD
Retailer 14$1,887 USD
Retailer 5$2,000 USD
Retailer 10$2,132 USD
Retailer 6$2,220 USD
Retailer 7$2,825 USD
Brilliant Earth$2,960 USD

12 data points across 15 retailers

15 retailers$542 USD to $2,960 USD

A
Cheapest Retailer
-
$542 USD
Final sale: no returns
A
Retailer 2
-
$596 USD
£470 GBP
View
A
Retailer 3
-
$811 USD
View
A
Retailer 4
-
$875 USD
View
A
Retailer 5
-
$904 USD
View
A
Retailer 6
-
$957 USD
£754 GBP
View
A
Retailer 7
-
$969 USD
€923 EUR
View
A
Retailer 8
-
$993 USD
ZAR 16,034 ZAR
View
B+
Retailer 9
-
$1,135 USD
View
B+
Retailer 10
-
$1,887 USD
View
B
Retailer 11
-
$2,000 USD
SGD 2,703 SGD
View
B
Retailer 12
-
$2,132 USD
£1,679 GBP
View
Retailer 13
-
$2,220 USD
View
Price last confirmed 9 days ago
B
Retailer 14
-
$2,825 USD
View
Most Expensive
B
Brilliant Earth
21861654A · Oct 30
$2,960 USD
View
14 more retailers have this diamond
Prices start from $542 USDSave up to $2,418 USD

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
$542 USD