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Round|Lab Grown|IGI

1.23ct E IF Round Lab Grown Diamond

EX • E/IF • IGI LG755529144

Shape and cutting style on the report: Round brilliant

Certificate IGI LG755529144

Diamond specifications and retailer prices

From $676 CAD
€461 EUR
As of October 29, 2026
Save $984 CAD (59%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,739 CAD at Rare Carat · As of October 7, 2026
View at Rare Carat

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 LG755529144 or 755529144. Listed at 8 retailers as of October 29, 2026, with a 146% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG755529144
Dimensions6.85 × 6.81 × 4.27 mm
L/W Ratio1.01
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
6.85 mm6.81 mm1.23 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG755529144
Side View
Table 57.0%Crown 34.8°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.6%

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 29
Current: $1,739 CAD|Low: $659 CAD|High: $1,778 CAD|Avg: $1,045 CAD|-2.2%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 7$676 CAD
Retailer 5$701 CAD
Retailer 4$750 CAD
Retailer 2$784 CAD
Retailer 3$937 CAD
Retailer 6$1,407 CAD
Retailer 8$1,661 CAD
Rare Carat$1,739 CAD

43 data points across 8 retailers

8 retailers$676 CAD to $1,661 CAD

A
Cheapest Retailer
-
$676 CAD
€461 EUR
A
Retailer 2
-
$701 CAD
$502 USD
View
A
Retailer 3
-
$750 CAD
$537 USD
View
A
Retailer 4
-
$784 CAD
£442 GBP
View
B+
Retailer 5
-
$937 CAD
$671 USD
View
B+
Retailer 6
-
$1,407 CAD
$1,008 USD
View
B
Retailer 7
-
$1,661 CAD
£936 GBP
View
Most Expensive
Rare Carat
7P755529144 · Oct 7
$1,739 CAD
$1,245 USD
View
Price last confirmed 23 days ago
7 more retailers have this diamond
Prices start from $676 CADSave up to $984 CAD

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
1.23ct Round
$676 CAD