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1.23ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG628483023

Shape and cutting style on the report: Round brilliant

Certificate IGI LG628483023

Diamond specifications and retailer prices

From $1,930 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $1,930 USD 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 round diamond

This 1.23ct lab-grown round 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 LG628483023 or 628483023. Listed at a single retailer as of October 29, 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
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628483023
Dimensions6.89 × 6.84 × 4.23 mm
L/W Ratio1.01
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
6.89 mm6.84 mm1.23 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628483023
Side View
Table 60.0%Crown 34.5°Girdle: MediumPavilion 41.4°Culet: NoneDepth 61.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $1,930 USD|Low: $1,639 USD|High: $1,930 USD|Avg: $1,801 USD
Brilliant Earth
Retailer 2
December 30, 2025
Retailer 2$1,639 USD
Brilliant Earth$1,930 USD

5 data points across 2 retailers

1 retailer

B
Brilliant Earth
14953693Y · Oct 29
$1,930 USD
View

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B
1.23ct Round
$1,930 USD