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Round|Lab Grown|IGI

1.20ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG490195514

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490195514

Diamond specifications and retailer prices

From $325 CAD
$232 USD
As of October 28, 2026
Save $1,234 CAD (79%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,559 CAD at MOH London · As of October 29, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490195514 or 490195514. Listed at 8 retailers as of October 28, 2026, with prices from $325 to $1,559, a $1,234 spread on the same certified stone. MOH London lists it at $1,559. 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490195514
Dimensions6.85 × 6.82 × 4.18 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.85 mm6.82 mm1.20 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490195514
Side View
Table 58.0%Crown 33.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.1%

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: Oct 28
Current: $1,559 CAD|Low: $237 CAD|High: $1,559 CAD|Avg: $736 CAD|+7.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 8$325 CAD
Retailer 5$332 CAD
Retailer 3$533 CAD
Retailer 6$581 CAD
Retailer 2$602 CAD
Retailer 4$780 CAD
Retailer 7$1,141 CAD
MOH London$1,559 CAD

39 data points across 8 retailers

8 retailers$325 CAD to $1,559 CAD

A
Cheapest Retailer
-
$325 CAD
$232 USD
Final sale: no returns
Retailer 2
-
$332 CAD
$237 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
$533 CAD
$381 USD
View
B+
Retailer 4
-
$581 CAD
$415 USD
View
B+
Retailer 5
-
$602 CAD
£339 GBP
View
B+
Retailer 6
-
$780 CAD
$557 USD
View
B
Retailer 7
-
$1,141 CAD
$815 USD
View
Most Expensive
B
MOH London
LG490195514 · Oct 29
$1,559 CAD
£877 GBP
View
7 more retailers have this diamond
Prices start from $325 CADSave up to $1,234 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
$325 CAD