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Round|Lab Grown|IGI

1.33ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG492112687

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492112687

Diamond specifications and retailer prices

From $880 CAD
As of November 5, 2026
Save $3,411 CAD (79%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,291 CAD at MOH London · As of November 5, 2026
View at MOH London

About this 1.33ct lab-grown round diamond

This 1.33ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492112687 or 492112687. Listed at 12 retailers as of November 5, 2026, with prices from $880 to $4,291, a $3,411 spread on the same certified stone. MOH London lists it at $4,291. 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

1.33
Carat
J
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492112687
Dimensions7.05 × 7.01 × 4.37 mm
L/W Ratio1.01
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
7.05 mm7.01 mm1.33 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492112687
Side View
Table 54.5%Crown 34.7°Girdle: MediumPavilion 40.4°Culet: NoneDepth 62.1%

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: $4,291 CAD|Low: $704 CAD|High: $4,353 CAD|Avg: $1,631 CAD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6$880 CAD
Retailer 9$986 CAD
Retailer 7$1,021 CAD
Retailer 10$1,021 CAD
Retailer 2$1,061 CAD
Retailer 11$1,116 CAD
Retailer 5$1,271 CAD
Retailer 3$1,669 CAD
Retailer 8$1,669 CAD
Retailer 4$2,609 CAD
MOH London$4,291 CAD

18 data points across 11 retailers

12 retailers$880 CAD to $4,291 CAD

A
Cheapest Retailer
-
$880 CAD
A
Retailer 2
-
$958 CAD
View
B+
Retailer 3
-
$986 CAD
View
Final sale: no returns
Retailer 4
-
$1,021 CAD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$1,021 CAD
View
B+
Retailer 6
-
$1,061 CAD
View
B+
Retailer 7
-
$1,116 CAD
View
B+
Retailer 8
-
$1,271 CAD
View
B
Retailer 9
-
$1,669 CAD
View
B
Retailer 10
-
$2,609 CAD
View
B
Retailer 11
-
$2,871 CAD
View
Most Expensive
B
MOH London
LG492112687 · Nov 5
$4,291 CAD
£2,419 GBP
View
11 more retailers have this diamond
Prices start from $880 CADSave up to $3,411 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
1.33ct Round
$880 CAD