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Cushion|Lab Grown|IGI

1.50ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG798603812

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG798603812

Diamond specifications and retailer prices

From $486 USD
As of October 28, 2026
Save $2,374 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,860 USD at Brilliant Earth · As of October 29, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG798603812 or 798603812. Listed at 19 retailers as of October 28, 2026, with prices from $486 to $2,860, a $2,374 spread on the same certified stone. Brilliant Earth lists it at $2,860. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
E
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG798603812
Dimensions7.70 × 6.02 × 3.86 mm
L/W Ratio1.28
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
7.70 mm6.02 mm1.50 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG798603812
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 34.9°Culet: NoneDepth 64.1%

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: Oct 28
Current: $2,860 USD|Low: $486 USD|High: $3,030 USD|Avg: $1,363 USD|-5.6%
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
Retailer 16
Retailer 17
October 30, 2026
Retailer 8$486 USD
Retailer 6$539 USD
Retailer 7$722 USD
Retailer 13$725 USD
Retailer 11$826 USD
Retailer 16$852 USD
Retailer 2$889 USD
Retailer 12$926 USD
Retailer 3$1,051 USD
Retailer 10$1,255 USD
Retailer 15$1,302 USD
Retailer 9$1,544 USD
Retailer 5$1,764 USD
Retailer 17$1,942 USD
Retailer 14$1,981 USD
Retailer 4$2,016 USD
Brilliant Earth$2,860 USD

39 data points across 17 retailers

19 retailers$486 USD to $2,860 USD

A
Cheapest Retailer
-
$486 USD
Final sale: no returns
A
Retailer 2
-
$539 USD
View
A
Retailer 3
-
$722 USD
View
A
Retailer 4
-
$725 USD
View
A
Retailer 5
-
$826 USD
€787 EUR
View
A
Retailer 6
-
$852 USD
View
A
Retailer 7
-
$889 USD
£700 GBP
View
A
Retailer 8
-
$926 USD
ZAR 14,958 ZAR
View
A
Retailer 9
-
$1,051 USD
View
A
Retailer 10
-
$1,255 USD
A$1,930 AUD
View
A
Retailer 11
-
$1,302 USD
View
Retailer 12
-
$1,544 USD
A$2,376 AUD
View
Price last confirmed 22 days ago
B+
Retailer 13
-
$1,680 USD
View
B+
Retailer 14
-
$1,764 USD
View
B+
Retailer 15
-
$1,942 USD
View
B+
Retailer 16
-
$1,981 USD
£1,560 GBP
View
B+
Retailer 17
-
$2,016 USD
View
B
Retailer 18
-
$2,781 USD
£2,190 GBP
View
Most Expensive
B
Brilliant Earth
19012551A · Oct 29
$2,860 USD
View
18 more retailers have this diamond
Prices start from $486 USDSave up to $2,374 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
$486 USD