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Marquise|Lab Grown|IGI

1.21ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG754508674

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754508674

Diamond specifications and retailer prices

From $517 CAD
As of November 5, 2026
Save $3,296 CAD (86%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $3,813 CAD at Do Amore Diamonds · As of November 5, 2026
View at Do Amore Diamonds

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754508674 or 754508674. Listed at 30 retailers as of November 5, 2026, with prices from $517 to $3,813, a $3,296 spread on the same certified stone. Do Amore Diamonds lists it at $3,813. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508674
Dimensions10.82 × 5.55 × 3.51 mm
L/W Ratio1.95
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
10.82 mm5.55 mm1.21 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508674
Side View
Table 58.0%Crown 33.9°Girdle: Slightly ThickPavilion 40.1°Culet: NoneDepth 63.2%

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 5
Current: $3,813 CAD|Low: $517 CAD|High: $5,167 CAD|Avg: $1,707 CAD|-26.2%
Do Amore Diamonds
Retailer 2
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Retailer 24
November 5, 2026
Retailer 13$517 CAD
Retailer 17$582 CAD
Retailer 22$602 CAD
Retailer 16$694 CAD
Retailer 20$698 CAD
Retailer 21$786 CAD
Retailer 5$831 CAD
Retailer 2$856 CAD
Retailer 15$1,017 CAD
Retailer 18$1,042 CAD
Retailer 11$1,089 CAD
Retailer 9$1,321 CAD
Retailer 7$1,338 CAD
Retailer 24$1,443 CAD
Retailer 4$1,634 CAD
Retailer 3$1,887 CAD
Retailer 14$2,109 CAD
Retailer 8$2,110 CAD
Retailer 6$2,137 CAD
Retailer 19$2,346 CAD
Retailer 10$2,515 CAD
Retailer 12$2,515 CAD
Retailer 23$2,556 CAD
Do Amore Diamonds$3,813 CAD

32 data points across 24 retailers

30 retailers$517 CAD to $3,813 CAD

A
Cheapest Retailer
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$517 CAD
Final sale: no returns
Retailer 2
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$582 CAD
View
Price last confirmed 28 days ago
Retailer 3
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$582 CAD
View
Price last confirmed 36 days ago
A
Retailer 4
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$602 CAD
View
Retailer 5
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$652 CAD
View
Price last confirmed 37 days ago
Retailer 6
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$694 CAD
View
Price last confirmed 28 days ago
Retailer 7
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$694 CAD
View
Price last confirmed 26 days ago
A
Retailer 8
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$698 CAD
View
Retailer 9
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$712 CAD
View
Price last confirmed 37 days ago
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Retailer 10
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$786 CAD
View
A
Retailer 11
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$831 CAD
View
A
Retailer 12
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$856 CAD
View
B+
Retailer 13
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$1,017 CAD
View
A
Retailer 14
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$1,042 CAD
View
Retailer 15
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$1,089 CAD
View
Price last confirmed 7 days ago
B+
Retailer 16
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$1,321 CAD
View
B+
Retailer 17
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$1,338 CAD
View
B+
Retailer 18
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$1,443 CAD
View
B+
Retailer 19
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$1,634 CAD
View
B+
Retailer 20
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$1,887 CAD
View
Retailer 21
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$2,109 CAD
View
Price last confirmed 8 days ago
B+
Retailer 22
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$2,110 CAD
View
B+
Retailer 23
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$2,137 CAD
View
B
Retailer 24
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$2,346 CAD
View
Retailer 25
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$2,465 CAD
View
Price last confirmed 26 days ago
B
Retailer 26
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$2,515 CAD
View
B
Retailer 27
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$2,515 CAD
View
B
Retailer 28
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$2,556 CAD
View
Retailer 29
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$2,560 CAD
View
Price last confirmed 36 days ago
Most Expensive
B
Do Amore Diamonds
27-B4A31C9AE · Nov 5
$3,813 CAD
$2,730 USD
View
29 more retailers have this diamond
Prices start from $517 CADSave up to $3,296 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
$517 CAD