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Cushion|Lab Grown|IGI

1.45ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG674551670

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG674551670

Diamond specifications and retailer prices

From $244 USD
As of November 4, 2026
Save $1,236 USD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,480 USD at Brilliant Earth · As of November 4, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG674551670 or 674551670. Listed at 17 retailers as of November 4, 2026, with prices from $244 to $1,480, a $1,236 spread on the same certified stone. Brilliant Earth lists it at $1,480. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG674551670
Dimensions6.53 × 6.53 × 4.41 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
6.53 mm6.53 mm1.45 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG674551670
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 67.5%

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: Nov 4
Current: $1,480 USD|Low: $271 USD|High: $1,600 USD|Avg: $675 USD|-5.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 3$271 USD
Retailer 4$361 USD
Retailer 11$365 USD
Retailer 7$468 USD
Retailer 8$492 USD
Retailer 5$498 USD
Retailer 6$663 USD
Retailer 10$687 USD
Retailer 9$890 USD
Retailer 2$1,083 USD
Brilliant Earth$1,480 USD

43 data points across 11 retailers

17 retailers$244 USD to $1,480 USD

A
Cheapest Retailer
-
$244 USD
Final sale: no returns
Retailer 2
-
$271 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$361 USD
View
B+
Retailer 4
-
$365 USD
View
A
Retailer 5
-
$468 USD
View
A
Retailer 6
-
$492 USD
View
A
Retailer 7
-
$498 USD
View
A
Retailer 8
-
$523 USD
View
B+
Retailer 9
-
$638 USD
View
A
Retailer 10
-
$663 USD
View
B+
Retailer 11
-
$687 USD
View
Retailer 12
-
$890 USD
View
Price last confirmed 17 days ago
B+
Retailer 13
-
$924 USD
View
Retailer 14
-
$939 USD
View
Price last confirmed 88 days ago
B
Retailer 15
-
$1,083 USD
View
B
Retailer 16
-
$1,253 USD
View
Most Expensive
B
Brilliant Earth
21311737A · Nov 4
$1,480 USD
View
16 more retailers have this diamond
Prices start from $244 USDSave up to $1,236 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
$244 USD