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Cushion|Lab Grown|IGI

1.23ct F IF Cushion Lab Grown Diamond

ID • F/IF • IGI LG645468475

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG645468475

Diamond specifications and retailer prices

From €2,256 EUR
$2,530 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: €2,256 EUR at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.23ct lab-grown cushion diamond

This 1.23ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG645468475 or 645468475. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
F
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645468475
Dimensions7.60 × 5.70 × 3.59 mm
L/W Ratio1.33
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
7.60 mm5.70 mm1.23 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645468475
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 63.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: €2,256 EUR|Low: €811 EUR|High: €2,256 EUR|Avg: €1,436 EUR
Brilliant Earth
Retailer 2
Retailer 3
December 30, 2025
Retailer 3€811 EUR
Retailer 2€1,035 EUR
Brilliant Earth€2,256 EUR

5 data points across 3 retailers

1 retailer

B
Brilliant Earth
14267489A · Oct 31
€2,256 EUR
$2,530 USD
View

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B
1.23ct Cushion
€2,256 EUR