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Marquise|Lab Grown|IGI

1.28ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG771640286

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG771640286

Diamond specifications and retailer prices

From $601 CAD
$430 USD
As of November 1, 2026
Save $3,256 CAD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,857 CAD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.28ct lab-grown marquise diamond

This 1.28ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG771640286 or 771640286. Listed at 21 retailers as of November 1, 2026, with prices from $601 to $3,857, a $3,256 spread on the same certified stone. Brilliant Earth lists it at $3,857. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771640286
Dimensions11.35 × 5.77 × 3.53 mm
L/W Ratio1.97
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
11.35 mm5.77 mm1.28 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771640286
Side View
Table 58.0%Crown 34.1°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.2%

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 1
Current: $3,857 CAD|Low: $601 CAD|High: $4,234 CAD|Avg: $1,724 CAD|-8.9%
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
November 3, 2026
Retailer 3$601 CAD
Retailer 7$672 CAD
Retailer 12$911 CAD
Retailer 5$922 CAD
Retailer 14$995 CAD
Retailer 6$1,093 CAD
Retailer 4$1,106 CAD
Retailer 10$1,150 CAD
Retailer 11$1,208 CAD
Retailer 15$1,251 CAD
Retailer 9$1,606 CAD
Retailer 16$2,196 CAD
Retailer 13$2,492 CAD
Retailer 2$2,602 CAD
Retailer 8$3,570 CAD
Brilliant Earth$3,857 CAD

31 data points across 16 retailers

21 retailers$601 CAD to $3,857 CAD

Retailer 1
-
$516 CAD
$369 USD
Price last confirmed 31 days ago
Retailer 2
-
$601 CAD
$430 USD
View
Price last confirmed 35 days ago
A
Retailer 3
-
$601 CAD
$430 USD
View
Final sale: no returns
Retailer 4
-
$665 CAD
$476 USD
View
Price last confirmed 30 days ago
Retailer 5
-
$672 CAD
$481 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$678 CAD
$485 USD
View
Price last confirmed 21 days ago
A
Retailer 7
-
$911 CAD
$652 USD
View
A
Retailer 8
-
$922 CAD
$660 USD
View
A
Retailer 9
-
$995 CAD
$712 USD
View
A
Retailer 10
-
$1,093 CAD
€745 EUR
View
A
Retailer 11
-
$1,106 CAD
A$1,218 AUD
View
A
Retailer 12
-
$1,150 CAD
ZAR 13,296 ZAR
View
A
Retailer 13
-
$1,208 CAD
£681 GBP
View
A
Retailer 14
-
$1,251 CAD
$895 USD
View
B+
Retailer 15
-
$1,606 CAD
$1,149 USD
View
Retailer 16
-
$2,139 CAD
$1,531 USD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
$2,196 CAD
$1,572 USD
View
B+
Retailer 18
-
$2,492 CAD
$1,784 USD
View
B+
Retailer 19
-
$2,602 CAD
£1,466 GBP
View
Retailer 20
-
$3,570 CAD
$2,555 USD
View
Price last confirmed 26 days ago
Most Expensive
B
Brilliant Earth
21212659A · Nov 2
$3,857 CAD
$2,760 USD
View
20 more retailers have this diamond
Prices start from $601 CADSave up to $3,256 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
1.28ct Marquise
$601 CAD