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Marquise|Lab Grown|IGI

1.21ct D VS1 Marquise Lab Grown Diamond

EX • D/VS1 • IGI LG816674414

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816674414

Diamond specifications and retailer prices

From $291 CAD
As of November 4, 2026
Save $1,215 CAD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,506 CAD at MOH London · As of November 5, 2026
View at MOH London

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG816674414 or 816674414. Listed at 16 retailers as of November 4, 2026, with prices from $291 to $1,506, a $1,215 spread on the same certified stone. MOH London lists it at $1,506. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816674414
Dimensions10.39 × 5.55 × 3.55 mm
L/W Ratio1.87
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.39 mm5.55 mm1.21 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816674414
Side View
Table 60.0%Crown 34.4°Girdle: STK-THKPavilion 41°Culet: NoneDepth 64.0%

Caratlytics Score

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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 4
Current: $1,506 CAD|Low: $291 CAD|High: $1,589 CAD|Avg: $839 CAD|-5.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 5, 2026
Retailer 11$291 CAD
Retailer 8$431 CAD
Retailer 13$435 CAD
Retailer 12$557 CAD
Retailer 6$577 CAD
Retailer 2$580 CAD
Retailer 3$642 CAD
Retailer 15$666 CAD
Retailer 10$787 CAD
Retailer 14$1,038 CAD
Retailer 9$1,042 CAD
Retailer 7$1,045 CAD
Retailer 5$1,086 CAD
Retailer 4$1,113 CAD
MOH London$1,506 CAD

41 data points across 15 retailers

16 retailers$291 CAD to $1,506 CAD

A
Cheapest Retailer
-
$291 CAD
Final sale: no returns
A
Retailer 2
-
$431 CAD
View
B+
Retailer 3
-
$435 CAD
View
A
Retailer 4
-
$557 CAD
View
Retailer 5
-
$577 CAD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$580 CAD
View
A
Retailer 7
-
$642 CAD
View
A
Retailer 8
-
$666 CAD
View
B+
Retailer 9
-
$787 CAD
View
B+
Retailer 10
-
$1,038 CAD
View
B+
Retailer 11
-
$1,042 CAD
View
Retailer 12
-
$1,045 CAD
View
Price last confirmed 29 days ago
Retailer 13
-
$1,086 CAD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$1,113 CAD
View
B
Retailer 15
-
$1,380 CAD
View
Most Expensive
B
MOH London
LG816674414 · Nov 5
$1,506 CAD
£851 GBP
View
15 more retailers have this diamond
Prices start from $291 CADSave up to $1,215 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
1.21ct Marquise
$291 CAD