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Marquise|Lab Grown|IGI

1.21ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG841674554

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841674554

Diamond specifications and retailer prices

From $281 CAD
As of November 4, 2026
Save $1,516 CAD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,798 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 LG841674554 or 841674554. Listed at 19 retailers as of October 30, 2026, with prices from $281 to $1,798, a $1,516 spread on the same certified stone. Brilliant Earth lists it at $1,798. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841674554
Dimensions10.90 × 5.59 × 3.45 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.90 mm5.59 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841674554
Side View
Table 61.0%Crown 30.8°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.7%

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 4
Current: $1,798 CAD|Low: $281 CAD|High: $1,798 CAD|Avg: $802 CAD
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
November 5, 2026
Retailer 3$281 CAD
Retailer 8$314 CAD
Retailer 6$348 CAD
Retailer 9$348 CAD
Retailer 12$464 CAD
Retailer 7$471 CAD
Retailer 15$601 CAD
Retailer 18$606 CAD
Retailer 2$633 CAD
Retailer 5$649 CAD
Retailer 13$704 CAD
Retailer 16$843 CAD
Retailer 14$849 CAD
Retailer 17$1,095 CAD
Retailer 4$1,193 CAD
Retailer 11$1,623 CAD
Retailer 10$1,669 CAD
Brilliant Earth$1,798 CAD

32 data points across 18 retailers

19 retailers$281 CAD to $1,798 CAD

A
Cheapest Retailer
-
$281 CAD
A
Retailer 2
-
$314 CAD
View
Final sale: no returns
A
Retailer 3
-
$348 CAD
View
Retailer 4
-
$348 CAD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$464 CAD
View
B+
Retailer 6
-
$471 CAD
View
A
Retailer 7
-
$601 CAD
View
Retailer 8
-
$606 CAD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$633 CAD
View
A
Retailer 10
-
$649 CAD
View
A
Retailer 11
-
$704 CAD
View
B+
Retailer 12
-
$843 CAD
View
B+
Retailer 13
-
$849 CAD
View
Retailer 14
-
$1,059 CAD
View
Price last confirmed 29 days ago
Retailer 15
-
$1,095 CAD
View
Price last confirmed 9 days ago
B
Retailer 16
-
$1,193 CAD
View
B
Retailer 17
-
$1,623 CAD
View
B
Retailer 18
-
$1,669 CAD
View
Most Expensive
B
Brilliant Earth
21789863A · Oct 30
$1,798 CAD
$1,290 USD
View
18 more retailers have this diamond
Prices start from $281 CADSave up to $1,516 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
$281 CAD