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Cushion|Lab Grown|IGI

1.50ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG836616360

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG836616360

Diamond specifications and retailer prices

From $449 USD
£354 GBP
As of October 30, 2026
Save $2,411 USD (84%) vs most expensive(unlock to see where)
16 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 LG836616360 or 836616360. Listed at 16 retailers as of October 29, 2026, with prices from $449 to $2,860, a $2,411 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836616360
Dimensions8.51 × 5.81 × 3.70 mm
L/W Ratio1.46
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
8.51 mm5.81 mm1.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836616360
Side View
Table 61.0%Crown 35°Girdle: STK-THKPavilion 32°Culet: NoneDepth 63.7%

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: Oct 30
Current: $2,860 USD|Low: $448 USD|High: $2,860 USD|Avg: $1,344 USD
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
October 30, 2026
Retailer 2$449 USD
Retailer 15$660 USD
Retailer 16$689 USD
Retailer 4$699 USD
Retailer 14$748 USD
Retailer 9$782 USD
Retailer 10$873 USD
Retailer 12$1,009 USD
Retailer 5$1,022 USD
Retailer 6$1,440 USD
Retailer 13$1,520 USD
Retailer 11$1,709 USD
Retailer 8$1,803 USD
Retailer 7$2,394 USD
Retailer 3$2,395 USD
Brilliant Earth$2,860 USD

11 data points across 16 retailers

16 retailers$449 USD to $2,860 USD

A
Cheapest Retailer
-
$449 USD
£354 GBP
A
Retailer 2
-
$660 USD
View
A
Retailer 3
-
$689 USD
View
A
Retailer 4
-
$699 USD
View
A
Retailer 5
-
$748 USD
ZAR 12,076 ZAR
View
A
Retailer 6
-
$782 USD
£616 GBP
View
A
Retailer 7
-
$873 USD
€831 EUR
View
A
Retailer 8
-
$1,009 USD
A$1,553 AUD
View
A
Retailer 9
-
$1,022 USD
View
B+
Retailer 10
-
$1,440 USD
View
B+
Retailer 11
-
$1,520 USD
View
B+
Retailer 12
-
$1,709 USD
£1,346 GBP
View
B+
Retailer 13
-
$1,803 USD
SGD 2,436 SGD
View
B
Retailer 14
-
$2,394 USD
View
Retailer 15
-
$2,395 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
22192118A · Oct 29
$2,860 USD
View
15 more retailers have this diamond
Prices start from $449 USDSave up to $2,411 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
$449 USD