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Round|Lab Grown|IGI

1.20ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG811647134

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811647134

Diamond specifications and retailer prices

From $267 CAD
As of November 5, 2026
Save $1,276 CAD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,543 CAD at MOH London · As of November 5, 2026
View at MOH London

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG811647134 or 811647134. Listed at 15 retailers as of November 5, 2026, with prices from $267 to $1,543, a $1,276 spread on the same certified stone. MOH London lists it at $1,543. 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

1.20
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811647134
Dimensions6.84 × 6.82 × 4.15 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.84 mm6.82 mm1.20 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811647134
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 60.7%

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: $1,543 CAD|Low: $267 CAD|High: $1,566 CAD|Avg: $729 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 6, 2026
Retailer 8$267 CAD
Retailer 9$331 CAD
Retailer 2$513 CAD
Retailer 11$547 CAD
Retailer 10$580 CAD
Retailer 4$606 CAD
Retailer 6$615 CAD
Retailer 5$754 CAD
Retailer 7$1,067 CAD
Retailer 3$1,138 CAD
MOH London$1,543 CAD

33 data points across 11 retailers

15 retailers$267 CAD to $1,543 CAD

A
Cheapest Retailer
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$267 CAD
A
Retailer 2
-
$310 CAD
View
Retailer 3
-
$331 CAD
View
Price last confirmed 12 days ago
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Retailer 4
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$331 CAD
View
A
Retailer 5
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$513 CAD
View
A
Retailer 6
-
$547 CAD
View
A
Retailer 7
-
$580 CAD
View
A
Retailer 8
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$606 CAD
View
A
Retailer 9
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$615 CAD
View
A
Retailer 10
-
$754 CAD
View
A
Retailer 11
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$856 CAD
View
A
Retailer 12
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$1,064 CAD
View
A
Retailer 13
-
$1,067 CAD
View
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Retailer 14
-
$1,138 CAD
View
Most Expensive
A
MOH London
LG811647134 · Nov 5
$1,543 CAD
£870 GBP
View
14 more retailers have this diamond
Prices start from $267 CADSave up to $1,276 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
1.20ct Round
$267 CAD