Cushion|Lab Grown|IGI

1.00ct E FL Cushion Lab Grown Diamond

ID • E/FL • IGI LG816624097

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

Certificate IGI LG816624097

Diamond specifications and retailer prices

From $325 USD
As of October 30, 2026
Save $1,395 USD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,720 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1ct lab-grown cushion diamond

This 1ct 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 LG816624097 or 816624097. Listed at 13 retailers as of October 30, 2026, with prices from $325 to $1,720, a $1,395 spread on the same certified stone. Brilliant Earth lists it at $1,720. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816624097
Dimensions6.02 × 5.89 × 3.79 mm
L/W Ratio1.02
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
6.02 mm5.89 mm1.00 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816624097
Side View
Table 62.0%Crown 37.1°Girdle: MED-THKPavilion 38.7°Culet: NoneDepth 64.3%

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: $1,720 USD|Low: $264 USD|High: $2,070 USD|Avg: $964 USD|-16.9%
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 30, 2026
Retailer 11$325 USD
Retailer 5$403 USD
Retailer 10$584 USD
Retailer 12$591 USD
Retailer 6$593 USD
Retailer 3$600 USD
Retailer 8$619 USD
Retailer 2$637 USD
Retailer 13$1,206 USD
Retailer 4$1,280 USD
Retailer 7$1,452 USD
Retailer 9$1,482 USD
Brilliant Earth$1,720 USD

35 data points across 13 retailers

13 retailers$325 USD to $1,720 USD

A
Cheapest Retailer
-
$325 USD
Final sale: no returns
Retailer 2
-
$403 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$584 USD
View
A
Retailer 4
-
$591 USD
View
A
Retailer 5
-
$593 USD
€565 EUR
View
A
Retailer 6
-
$600 USD
View
A
Retailer 7
-
$619 USD
ZAR 9,997 ZAR
View
A
Retailer 8
-
$637 USD
£502 GBP
View
B+
Retailer 9
-
$1,206 USD
View
Retailer 10
-
$1,280 USD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
$1,452 USD
£1,143 GBP
View
B
Retailer 12
-
$1,482 USD
View
Most Expensive
B
Brilliant Earth
21018883A · Oct 30
$1,720 USD
View
12 more retailers have this diamond
Prices start from $325 USDSave up to $1,395 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
1.00ct Cushion
$325 USD