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Round|Lab Grown|IGI

1.09ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG436073891

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436073891

Diamond specifications and retailer prices

From $683 CAD
As of November 5, 2026
Save $2,841 CAD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,524 CAD at MOH London · As of November 5, 2026
View at MOH London

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436073891 or 436073891. Listed at 13 retailers as of November 5, 2026, with prices from $683 to $3,524, a $2,841 spread on the same certified stone. MOH London lists it at $3,524. 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
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436073891
Dimensions6.67 × 6.64 × 4.04 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.67 mm6.64 mm1.09 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436073891
Side View
Table 56.5%Crown 33°GirdlePavilion 40.5°Culet: NoneDepth 60.7%

Caratlytics Score

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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: $3,524 CAD|Low: $546 CAD|High: $3,576 CAD|Avg: $1,320 CAD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 10$683 CAD
Retailer 3$764 CAD
Retailer 14$764 CAD
Retailer 5$788 CAD
Retailer 11$846 CAD
Retailer 13$846 CAD
Retailer 7$866 CAD
Retailer 2$908 CAD
Retailer 9$1,040 CAD
Retailer 12$1,318 CAD
Retailer 6$1,445 CAD
Retailer 4$2,226 CAD
Retailer 8$2,275 CAD
MOH London$3,524 CAD

39 data points across 14 retailers

13 retailers$683 CAD to $3,524 CAD

A
Cheapest Retailer
-
$683 CAD
A
Retailer 2
-
$764 CAD
View
A
Retailer 3
-
$764 CAD
View
Final sale: no returns
A
Retailer 4
-
$788 CAD
View
Retailer 5
-
$846 CAD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$846 CAD
View
A
Retailer 7
-
$866 CAD
View
A
Retailer 8
-
$908 CAD
View
A
Retailer 9
-
$1,040 CAD
View
B+
Retailer 10
-
$1,318 CAD
View
B
Retailer 11
-
$2,226 CAD
View
B
Retailer 12
-
$2,275 CAD
View
Most Expensive
B
MOH London
LG436073891 · Nov 5
$3,524 CAD
£1,987 GBP
View
12 more retailers have this diamond
Prices start from $683 CADSave up to $2,841 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 Round
$683 CAD