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Cushion|Lab Grown|IGI

1.00ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG689562075

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG689562075

Diamond specifications and retailer prices

From $347 USD
As of October 30, 2026
Save $1,443 USD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,790 USD at Brilliant Earth · As of October 29, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG689562075 or 689562075. Listed at 16 retailers as of October 29, 2026, with prices from $347 to $1,790, a $1,443 spread on the same certified stone. Brilliant Earth lists it at $1,790. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG689562075
Dimensions6.87 × 5.33 × 3.55 mm
L/W Ratio1.29
Girdle conditionFaceted
Culet sizePointed
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
6.87 mm5.33 mm1.00 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG689562075
Side View
Table 59.0%Crown 36.4°Girdle: MED-THKPavilion 35.6°Culet: NoneDepth 66.6%

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: $1,790 USD|Low: $343 USD|High: $1,790 USD|Avg: $889 USD|+1.7%
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$347 USD
Retailer 3$385 USD
Retailer 14$585 USD
Retailer 15$590 USD
Retailer 16$623 USD
Retailer 5$626 USD
Retailer 13$661 USD
Retailer 9$685 USD
Retailer 10$715 USD
Retailer 12$972 USD
Retailer 4$995 USD
Retailer 7$1,283 USD
Retailer 8$1,419 USD
Retailer 6$1,546 USD
Retailer 11$1,551 USD
Brilliant Earth$1,790 USD

39 data points across 16 retailers

16 retailers$347 USD to $1,790 USD

A
Cheapest Retailer
-
$347 USD
Final sale: no returns
A
Retailer 2
-
$385 USD
View
A
Retailer 3
-
$585 USD
View
A
Retailer 4
-
$590 USD
View
A
Retailer 5
-
$623 USD
View
A
Retailer 6
-
$626 USD
View
A
Retailer 7
-
$661 USD
ZAR 10,680 ZAR
View
A
Retailer 8
-
$685 USD
£539 GBP
View
A
Retailer 9
-
$715 USD
€681 EUR
View
B+
Retailer 10
-
$972 USD
A$1,496 AUD
View
B+
Retailer 11
-
$995 USD
View
B
Retailer 12
-
$1,283 USD
View
B
Retailer 13
-
$1,448 USD
View
B
Retailer 14
-
$1,546 USD
View
B
Retailer 15
-
$1,551 USD
£1,221 GBP
View
Most Expensive
B
Brilliant Earth
15714260A · Oct 29
$1,790 USD
View
15 more retailers have this diamond
Prices start from $347 USDSave up to $1,443 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
$347 USD