Cushion|Lab Grown|IGI

1.12ct D IF Cushion Lab Grown Diamond

EX • D/IF • IGI LG830658661

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

Certificate IGI LG830658661

Diamond specifications and retailer prices

From $538 USD
As of November 3, 2026
Save $1,082 USD (67%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,620 USD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.12ct lab-grown cushion diamond

This 1.12ct lab-grown cushion sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830658661 or 830658661. Listed at 7 retailers as of November 3, 2026, with prices from $538 to $1,620, a $1,082 spread on the same certified stone. Brilliant Earth lists it at $1,620. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.12
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830658661
Dimensions6.11 × 5.99 × 3.99 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
6.11 mm5.99 mm1.12 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830658661
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 66.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: $1,620 USD|Low: $538 USD|High: $2,150 USD|Avg: $1,238 USD|-24.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5$538 USD
Retailer 2$902 USD
Retailer 3$1,311 USD
Retailer 6$1,349 USD
Retailer 7$1,573 USD
Retailer 4$1,595 USD
Brilliant Earth$1,620 USD

15 data points across 7 retailers

7 retailers$538 USD to $1,620 USD

A
Cheapest Retailer
-
$538 USD
B+
Retailer 2
-
$902 USD
View
Retailer 3
-
$1,311 USD
View
Price last confirmed 14 days ago
B+
Retailer 4
-
$1,349 USD
View
Retailer 5
-
$1,573 USD
View
Price last confirmed 35 days ago
B
Retailer 6
-
$1,595 USD
View
Most Expensive
B
Brilliant Earth
22138581Y · Nov 4
$1,620 USD
View
6 more retailers have this diamond
Prices start from $538 USDSave up to $1,082 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
1.12ct Cushion
$538 USD