Cushion|Lab Grown|IGI

1.55ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG828682092

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

Certificate IGI LG828682092

Diamond specifications and retailer prices

From $744 USD
€709 EUR
As of October 29, 2026
Save $2,216 USD (75%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,960 USD at Brilliant Earth · As of October 29, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG828682092 or 828682092. Listed at 8 retailers as of October 29, 2026, with prices from $744 to $2,960, a $2,216 spread on the same certified stone. Brilliant Earth lists it at $2,960. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828682092
Dimensions6.83 × 6.73 × 4.47 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
6.83 mm6.73 mm1.55 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828682092
Side View
Table 61.0%Crown 35.9°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 66.4%

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 29
Current: $744 USD|Low: $738 USD|High: $2,430 USD|Avg: $1,466 USD|-17.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 1$744 USD
Retailer 6$1,108 USD
Retailer 2$1,512 USD
Retailer 4$1,565 USD
Retailer 7$1,594 USD
Retailer 3$1,660 USD
Retailer 5$2,340 USD

22 data points across 7 retailers

8 retailers$744 USD to $2,960 USD

A
Cheapest Retailer
-
$744 USD
€709 EUR
A
Retailer 2
-
$1,108 USD
View
B+
Retailer 3
-
$1,512 USD
SGD 2,043 SGD
View
Retailer 4
-
$1,565 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$1,594 USD
A$2,453 AUD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
$1,660 USD
View
Retailer 7
-
$2,340 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
22238923A · Oct 29
$2,960 USD
View
7 more retailers have this diamond
Prices start from $744 USDSave up to $2,216 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
$744 USD