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Oval|Lab Grown|IGI

1.18ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG818604621

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818604621

Diamond specifications and retailer prices

From $222 CAD
As of November 5, 2026
Save $1,064 CAD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,286 CAD at MOH London · As of November 4, 2026
View at MOH London

About this 1.18ct lab-grown oval diamond

This 1.18ct lab-grown oval 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 LG818604621 or 818604621. Listed at 9 retailers as of November 4, 2026, with prices from $222 to $1,286, a $1,064 spread on the same certified stone. MOH London lists it at $1,286. 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

1.18
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818604621
Dimensions8.81 × 6.04 × 3.65 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.81 mm6.04 mm1.18 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818604621
Side View
Table 60.0%Crown 33.4°Girdle: THN-MEDPavilion 41.5°Culet: NoneDepth 60.4%

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: Nov 5
Current: $1,286 CAD|Low: $218 CAD|High: $1,286 CAD|Avg: $808 CAD|+4.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 4, 2026
Retailer 3$222 CAD
Retailer 5$259 CAD
Retailer 6$475 CAD
Retailer 7$729 CAD
Retailer 4$888 CAD
Retailer 8$914 CAD
Retailer 2$937 CAD
Retailer 9$1,096 CAD
MOH London$1,286 CAD

22 data points across 9 retailers

9 retailers$222 CAD to $1,286 CAD

A
Cheapest Retailer
-
$222 CAD
A
Retailer 2
-
$259 CAD
View
A
Retailer 3
-
$475 CAD
View
B+
Retailer 4
-
$729 CAD
View
B+
Retailer 5
-
$888 CAD
View
B
Retailer 6
-
$914 CAD
View
B
Retailer 7
-
$937 CAD
View
Retailer 8
-
$1,096 CAD
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
LG818604621 · Nov 4
$1,286 CAD
£720 GBP
View
8 more retailers have this diamond
Prices start from $222 CADSave up to $1,064 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
1.18ct Oval
$222 CAD