Cushion|Lab Grown|IGI

1.55ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG816615898

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816615898

Diamond specifications and retailer prices

From $1,415 USD
As of October 31, 2026
Save $1,775 USD (56%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $3,190 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.55ct lab-grown cushion diamond

This 1.55ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816615898 or 816615898. Listed at 5 retailers as of October 30, 2026, with prices from $1,415 to $3,190, a $1,775 spread on the same certified stone. Brilliant Earth lists it at $3,190. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle32.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615898
Dimensions8.11 × 5.70 × 3.97 mm
L/W Ratio1.42
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
8.11 mm5.70 mm1.55 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615898
Side View
Table 62.0%Crown 36.6°Girdle: STK-VTKPavilion 32.7°Culet: NoneDepth 69.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $3,190 USD|Low: $564 USD|High: $4,420 USD|Avg: $2,026 USD|-18.0%
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
October 31, 2026
Retailer 12$564 USD
Retailer 9$720 USD
Retailer 6$906 USD
Retailer 4$1,203 USD
Retailer 11$1,288 USD
Retailer 2$1,415 USD
Retailer 10$1,780 USD
Retailer 13$2,362 USD
Retailer 3$2,562 USD
Retailer 7$2,703 USD
Retailer 5$2,829 USD
Brilliant Earth$3,190 USD
Retailer 8$4,150 USD

9 data points across 13 retailers

5 retailers$1,415 USD to $3,190 USD

Retailer 1
-
$906 USD
Price last confirmed 19 days ago
A
Retailer 2
-
$1,415 USD
View
Retailer 3
-
$2,562 USD
View
Price last confirmed 52 days ago
Retailer 4
-
$2,703 USD
£2,128 GBP
View
Price last confirmed 20 days ago
Most Expensive
B
Brilliant Earth
21730778Y · Oct 30
$3,190 USD
View
4 more retailers have this diamond
Prices start from $1,415 USDSave up to $1,775 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
1.55ct Cushion
$1,415 USD