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Marquise|Lab Grown|IGI

1.20ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG754594815

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754594815

Diamond specifications and retailer prices

From $527 CAD
As of November 4, 2026
Save $2,295 CAD (81%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $2,821 CAD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.2ct lab-grown marquise diamond

This 1.2ct 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 LG754594815 or 754594815. Listed at 30 retailers as of November 4, 2026, with prices from $527 to $2,821, a $2,295 spread on the same certified stone. Brilliant Earth lists it at $2,821. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594815
Dimensions11.03 × 5.46 × 3.45 mm
L/W Ratio2.02
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
11.03 mm5.46 mm1.20 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594815
Side View
Table 58.0%Crown 36°Girdle: STK-THKPavilion 40°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 4
Current: $2,821 CAD|Low: $527 CAD|High: $3,617 CAD|Avg: $1,723 CAD|-22.0%
Brilliant Earth
Retailer 2
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Retailer 23
November 5, 2026
Retailer 21$527 CAD
Retailer 16$637 CAD
Retailer 19$679 CAD
Retailer 15$761 CAD
Retailer 18$761 CAD
Retailer 3$824 CAD
Retailer 13$1,028 CAD
Retailer 14$1,077 CAD
Retailer 2$1,101 CAD
Retailer 11$1,219 CAD
Retailer 9$1,311 CAD
Retailer 7$1,327 CAD
Retailer 20$1,432 CAD
Retailer 23$1,709 CAD
Retailer 22$1,873 CAD
Retailer 8$1,933 CAD
Retailer 5$1,957 CAD
Retailer 12$2,130 CAD
Retailer 6$2,226 CAD
Retailer 4$2,275 CAD
Retailer 17$2,328 CAD
Retailer 10$2,496 CAD
Brilliant Earth$2,821 CAD

30 data points across 23 retailers

30 retailers$527 CAD to $2,821 CAD

A
Cheapest Retailer
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$527 CAD
Final sale: no returns
Retailer 2
-
$637 CAD
View
Price last confirmed 28 days ago
Retailer 3
-
$637 CAD
View
Price last confirmed 36 days ago
A
Retailer 4
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$679 CAD
View
Retailer 5
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$714 CAD
View
Price last confirmed 37 days ago
A
Retailer 6
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$761 CAD
View
Retailer 7
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$761 CAD
View
Price last confirmed 28 days ago
Retailer 8
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$761 CAD
View
Price last confirmed 26 days ago
Retailer 9
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$781 CAD
View
Price last confirmed 37 days ago
A
Retailer 10
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$824 CAD
View
A
Retailer 11
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$1,028 CAD
View
B+
Retailer 12
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$1,077 CAD
View
B+
Retailer 13
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$1,101 CAD
View
Retailer 14
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$1,219 CAD
View
Price last confirmed 7 days ago
Retailer 15
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$1,247 CAD
View
Price last confirmed 21 days ago
B+
Retailer 16
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$1,311 CAD
View
B+
Retailer 17
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$1,327 CAD
View
B+
Retailer 18
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$1,432 CAD
View
B+
Retailer 19
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$1,709 CAD
View
B+
Retailer 20
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$1,873 CAD
View
B+
Retailer 21
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$1,933 CAD
View
B+
Retailer 22
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$1,957 CAD
View
Retailer 23
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$2,130 CAD
View
Price last confirmed 8 days ago
B
Retailer 24
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$2,226 CAD
View
B
Retailer 25
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$2,275 CAD
View
B
Retailer 26
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$2,328 CAD
View
Retailer 27
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$2,445 CAD
View
Price last confirmed 26 days ago
B
Retailer 28
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$2,496 CAD
View
Retailer 29
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$2,540 CAD
View
Price last confirmed 36 days ago
Most Expensive
B
Brilliant Earth
17981286A · Nov 4
$2,821 CAD
$2,020 USD
View
29 more retailers have this diamond
Prices start from $527 CADSave up to $2,295 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
1.20ct Marquise
$527 CAD