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Radiant|Lab Grown|IGI

1.09ct E SI2 Radiant Lab Grown Diamond

ID • E/SI2 • IGI LG634405513

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

Certificate IGI LG634405513

Diamond specifications and retailer prices

From $305 CAD
$217 USD
As of October 27, 2026
Save $1,220 CAD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,525 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG634405513 or 634405513. Listed at 14 retailers as of October 27, 2026, with prices from $305 to $1,525, a $1,220 spread on the same certified stone. MOH London lists it at $1,525. 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

1.09
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634405513
Dimensions6.62 × 5.03 × 3.63 mm
L/W Ratio1.32
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.62 mm5.03 mm1.09 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634405513
Side View
Table 65.0%Crown 40.8°Girdle: STK-THKPavilion 33.4°Culet: NoneDepth 72.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,525 CAD|Low: $194 CAD|High: $1,536 CAD|Avg: $776 CAD|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 10$194 CAD
Retailer 9$340 CAD
Retailer 7$450 CAD
Retailer 6$649 CAD
Retailer 2$698 CAD
Retailer 8$712 CAD
Retailer 5$1,216 CAD
Retailer 3$1,222 CAD
Retailer 4$1,236 CAD
MOH London$1,525 CAD

41 data points across 10 retailers

14 retailers$305 CAD to $1,525 CAD

A
Cheapest Retailer
-
$305 CAD
$217 USD
A
Retailer 2
-
$340 CAD
$242 USD
View
Final sale: no returns
A
Retailer 3
-
$354 CAD
$252 USD
View
A
Retailer 4
-
$379 CAD
$270 USD
View
A
Retailer 5
-
$379 CAD
$270 USD
View
A
Retailer 6
-
$450 CAD
$320 USD
View
B+
Retailer 7
-
$649 CAD
$462 USD
View
B+
Retailer 8
-
$698 CAD
£392 GBP
View
B+
Retailer 9
-
$712 CAD
$507 USD
View
B
Retailer 10
-
$791 CAD
HK$4,400 HKD
View
B
Retailer 11
-
$1,216 CAD
$866 USD
View
B
Retailer 12
-
$1,222 CAD
$870 USD
View
B
Retailer 13
-
$1,236 CAD
$880 USD
View
Most Expensive
B
MOH London
LG634405513 · Oct 29
$1,525 CAD
£855 GBP
View
13 more retailers have this diamond
Prices start from $305 CADSave up to $1,220 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
1.09ct Radiant
$305 CAD