Cushion|Lab Grown|IGI

1.03ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG818662845

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

Certificate IGI LG818662845

Diamond specifications and retailer prices

From $360 USD
As of October 28, 2026
Save $1,820 USD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,180 USD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.03ct lab-grown cushion diamond

This 1.03ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818662845 or 818662845. Listed at 15 retailers as of October 28, 2026, with prices from $360 to $2,180, a $1,820 spread on the same certified stone. Brilliant Earth lists it at $2,180. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818662845
Dimensions6.09 × 6.09 × 3.81 mm
L/W Ratio1.00
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
6.09 mm6.09 mm1.03 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818662845
Side View
Table 60.0%Crown 34.6°Girdle: MediumPavilion 39.1°Culet: NoneDepth 62.6%

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: $2,180 USD|Low: $360 USD|High: $2,180 USD|Avg: $945 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
October 29, 2026
Retailer 15$360 USD
Retailer 8$424 USD
Retailer 7$446 USD
Retailer 12$555 USD
Retailer 13$622 USD
Retailer 14$645 USD
Retailer 3$646 USD
Retailer 9$684 USD
Retailer 11$707 USD
Retailer 5$712 USD
Retailer 6$1,315 USD
Retailer 4$1,326 USD
Retailer 10$1,581 USD
Retailer 2$1,605 USD
Brilliant Earth$2,180 USD

37 data points across 15 retailers

15 retailers$360 USD to $2,180 USD

A
Cheapest Retailer
-
$360 USD
Final sale: no returns
A
Retailer 2
-
$424 USD
£334 GBP
View
A
Retailer 3
-
$446 USD
View
Price last confirmed 16 days ago
A
Retailer 4
-
$555 USD
View
A
Retailer 5
-
$622 USD
View
A
Retailer 6
-
$645 USD
€614 EUR
View
A
Retailer 7
-
$646 USD
View
A
Retailer 8
-
$684 USD
ZAR 11,058 ZAR
View
A
Retailer 9
-
$707 USD
£557 GBP
View
A
Retailer 10
-
$712 USD
View
B+
Retailer 11
-
$1,315 USD
View
Price last confirmed 10 days ago
B+
Retailer 12
-
$1,326 USD
View
B+
Retailer 13
-
$1,581 USD
View
B+
Retailer 14
-
$1,605 USD
£1,264 GBP
View
Most Expensive
B
Brilliant Earth
21242374A · Oct 28
$2,180 USD
View
14 more retailers have this diamond
Prices start from $360 USDSave up to $1,820 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
1.03ct Cushion
$360 USD