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Cushion|Lab Grown|IGI

1.45ct F VVS1 Cushion Lab Grown Diamond

ID • F/VVS1 • IGI LG816615623

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

Certificate IGI LG816615623

Diamond specifications and retailer prices

From $252 USD
As of November 4, 2026
Save $1,388 USD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,640 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 F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG816615623 or 816615623. Listed at 16 retailers as of November 4, 2026, with prices from $252 to $1,640, a $1,388 spread on the same certified stone. Brilliant Earth lists it at $1,640. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
F
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615623
Dimensions6.48 × 6.39 × 4.14 mm
L/W Ratio1.01
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
6.48 mm6.39 mm1.45 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615623
Side View
Table 61.0%Crown 34.2°Girdle: STK-THKPavilion 34.3°Culet: NoneDepth 64.8%

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: $1,640 USD|Low: $246 USD|High: $1,690 USD|Avg: $748 USD|-3.0%
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
November 5, 2026
Retailer 3$252 USD
Retailer 4$274 USD
Retailer 13$475 USD
Retailer 9$481 USD
Retailer 11$494 USD
Retailer 2$515 USD
Retailer 7$682 USD
Retailer 8$740 USD
Retailer 6$778 USD
Retailer 12$789 USD
Retailer 14$949 USD
Retailer 10$1,117 USD
Retailer 5$1,225 USD
Brilliant Earth$1,640 USD

44 data points across 14 retailers

16 retailers$252 USD to $1,640 USD

A
Cheapest Retailer
-
$252 USD
Final sale: no returns
Retailer 2
-
$274 USD
View
Price last confirmed 11 days ago
A
Retailer 3
-
$475 USD
View
A
Retailer 4
-
$481 USD
View
A
Retailer 5
-
$494 USD
View
A
Retailer 6
-
$515 USD
View
B+
Retailer 7
-
$682 USD
View
B+
Retailer 8
-
$740 USD
View
B+
Retailer 9
-
$778 USD
View
B+
Retailer 10
-
$789 USD
View
B+
Retailer 11
-
$949 USD
View
B+
Retailer 12
-
$964 USD
View
B
Retailer 13
-
$1,117 USD
View
B
Retailer 14
-
$1,225 USD
View
Retailer 15
-
$1,271 USD
View
Price last confirmed 57 days ago
Most Expensive
B
Brilliant Earth
21421726A · Nov 4
$1,640 USD
View
15 more retailers have this diamond
Prices start from $252 USDSave up to $1,388 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
$252 USD