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Cushion|Lab Grown|IGI

1.51ct I VS1 Cushion Lab Grown Diamond

EX • I/VS1 • IGI LG649405817

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG649405817

Diamond specifications and retailer prices

From $492 CAD
$352 USD
As of October 30, 2026
Save $1,327 CAD (73%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,818 CAD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG649405817 or 649405817. Listed at 8 retailers as of October 29, 2026, with prices from $492 to $1,818, a $1,327 spread on the same certified stone. MOH London lists it at $1,818. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG649405817
Dimensions6.56 × 6.53 × 4.47 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.56 mm6.53 mm1.51 ctI / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG649405817
Side View
Table 60.0%Crown 37.7°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 68.5%

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 30
Current: $1,818 CAD|Low: $490 CAD|High: $1,831 CAD|Avg: $1,099 CAD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 2$492 CAD
Retailer 4$691 CAD
Retailer 5$760 CAD
Retailer 3$1,104 CAD
Retailer 7$1,146 CAD
Retailer 6$1,687 CAD
MOH London$1,818 CAD

14 data points across 7 retailers

8 retailers$492 CAD to $1,818 CAD

A
Cheapest Retailer
-
$492 CAD
$352 USD
A
Retailer 2
-
$691 CAD
$495 USD
View
A
Retailer 3
-
$760 CAD
$544 USD
View
Retailer 4
-
$1,104 CAD
$790 USD
View
Price last confirmed 9 days ago
Retailer 5
-
$1,118 CAD
$800 USD
View
Price last confirmed 82 days ago
Retailer 6
-
$1,131 CAD
$810 USD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$1,687 CAD
$1,207 USD
View
Most Expensive
B
MOH London
LG649405817 · Oct 29
$1,818 CAD
£1,025 GBP
View
7 more retailers have this diamond
Prices start from $492 CADSave up to $1,327 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
1.51ct Cushion
$492 CAD