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Radiant|Lab Grown|IGI

1.05ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG644499133

Shape and cutting style on the report: Cut cornered square modified brilliant

Certificate IGI LG644499133

Diamond specifications and retailer prices

From $267 CAD
$191 USD
As of October 25, 2026
Save $980 CAD (79%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,247 CAD at MOH London · As of October 25, 2026
View at MOH London

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG644499133 or 644499133. Listed at 8 retailers as of October 25, 2026, with prices from $267 to $1,247, a $980 spread on the same certified stone. MOH London lists it at $1,247. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.05
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644499133
Dimensions5.73 × 5.72 × 3.88 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.73 mm5.72 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644499133
Side View
Table 64.0%Crown 41.8°Girdle: MediumPavilion 39.1°Culet: NoneDepth 67.8%

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 25
Current: $1,247 CAD|Low: $267 CAD|High: $1,960 CAD|Avg: $703 CAD|-35.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 28, 2026
Retailer 3$267 CAD
Retailer 5$347 CAD
Retailer 4$453 CAD
Retailer 7$486 CAD
Retailer 2$506 CAD
Retailer 9$668 CAD
Retailer 6$714 CAD
Retailer 8$824 CAD
MOH London$1,247 CAD

23 data points across 9 retailers

8 retailers$267 CAD to $1,247 CAD

A
Cheapest Retailer
-
$267 CAD
$191 USD
Retailer 2
-
$347 CAD
£196 GBP
View
Price last confirmed 13 days ago
A
Retailer 3
-
$453 CAD
€309 EUR
View
B+
Retailer 4
-
$486 CAD
$348 USD
View
A
Retailer 5
-
$506 CAD
£285 GBP
View
B+
Retailer 6
-
$714 CAD
$511 USD
View
B
Retailer 7
-
$971 CAD
£547 GBP
View
Most Expensive
B
MOH London
LG644499133 · Oct 25
$1,247 CAD
£703 GBP
View
7 more retailers have this diamond
Prices start from $267 CADSave up to $980 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
1.05ct Radiant
$267 CAD