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Round|Lab Grown|IGI

1.40ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG451056203

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451056203

Diamond specifications and retailer prices

From $983 CAD
$704 USD
As of October 29, 2026
Save $3,523 CAD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,506 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.4ct lab-grown round diamond

This 1.4ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451056203 or 451056203. Listed at 10 retailers as of October 29, 2026, with prices from $983 to $4,506, a $3,523 spread on the same certified stone. MOH London lists it at $4,506. 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

1.40
Carat
I
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056203
Dimensions7.23 × 7.19 × 4.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.23 mm7.19 mm1.40 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056203
Side View
Table 55.0%Crown 35.2°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,506 CAD|Low: $944 CAD|High: $4,536 CAD|Avg: $1,931 CAD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 6$983 CAD
Retailer 9$1,070 CAD
Retailer 11$1,101 CAD
Retailer 2$1,104 CAD
Retailer 7$1,141 CAD
Retailer 12$1,141 CAD
Retailer 3$1,823 CAD
Retailer 8$1,852 CAD
Retailer 4$2,554 CAD
Retailer 5$2,811 CAD
Retailer 10$3,209 CAD
MOH London$4,506 CAD

19 data points across 12 retailers

10 retailers$983 CAD to $4,506 CAD

A
Cheapest Retailer
-
$983 CAD
$704 USD
A
Retailer 2
-
$1,070 CAD
$766 USD
View
A
Retailer 3
-
$1,101 CAD
$788 USD
View
Final sale: no returns
A
Retailer 4
-
$1,104 CAD
$790 USD
View
A
Retailer 5
-
$1,141 CAD
$817 USD
View
Retailer 6
-
$1,141 CAD
$817 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$1,852 CAD
$1,326 USD
View
B
Retailer 8
-
$2,811 CAD
$2,012 USD
View
B
Retailer 9
-
$3,209 CAD
$2,297 USD
View
Most Expensive
B
MOH London
LG451056203 · Oct 29
$4,506 CAD
£2,540 GBP
View
9 more retailers have this diamond
Prices start from $983 CADSave up to $3,523 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
1.40ct Round
$983 CAD