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Cushion|Lab Grown|IGI

1.50ct F IF Cushion Lab Grown Diamond

ID • F/IF • IGI LG818683709

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG818683709

Diamond specifications and retailer prices

From $480 USD
As of November 4, 2026
Save $1,580 USD (77%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,060 USD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.5ct lab-grown cushion diamond

This 1.5ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818683709 or 818683709. Listed at 10 retailers as of November 4, 2026, with prices from $480 to $2,060, a $1,580 spread on the same certified stone. Brilliant Earth lists it at $2,060. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818683709
Dimensions7.26 × 6.19 × 4.07 mm
L/W Ratio1.17
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.26 mm6.19 mm1.50 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818683709
Side View
Table 64.0%Crown 40.1°Girdle: STK-THKPavilion 36.8°Culet: NoneDepth 65.8%

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: Nov 4
Current: $2,060 USD|Low: $480 USD|High: $3,590 USD|Avg: $1,783 USD|-42.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 6$480 USD
Retailer 5$577 USD
Retailer 2$626 USD
Retailer 8$989 USD
Retailer 9$1,198 USD
Retailer 3$1,428 USD
Retailer 7$1,444 USD
Retailer 10$1,495 USD
Retailer 4$1,715 USD
Brilliant Earth$2,060 USD

46 data points across 10 retailers

10 retailers$480 USD to $2,060 USD

A
Cheapest Retailer
-
$480 USD
A
Retailer 2
-
$577 USD
View
A
Retailer 3
-
$626 USD
View
A
Retailer 4
-
$989 USD
View
A
Retailer 5
-
$1,198 USD
View
A
Retailer 6
-
$1,428 USD
View
A
Retailer 7
-
$1,444 USD
View
B+
Retailer 8
-
$1,495 USD
View
B+
Retailer 9
-
$1,715 USD
View
Most Expensive
B+
Brilliant Earth
22200346A · Nov 4
$2,060 USD
View
9 more retailers have this diamond
Prices start from $480 USDSave up to $1,580 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
1.50ct Cushion
$480 USD