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Marquise|Lab Grown|IGI

1.28ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG790611716

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790611716

Diamond specifications and retailer prices

From $792 CAD
$567 USD
As of October 30, 2026
Save $4,001 CAD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,793 CAD at Brilliant Earth · As of October 30, 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 LG790611716 or 790611716. Listed at 22 retailers as of October 30, 2026, with prices from $792 to $4,793, a $4,001 spread on the same certified stone. Brilliant Earth lists it at $4,793. 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 angle34.8°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790611716
Dimensions10.90 × 5.72 × 3.57 mm
L/W Ratio1.91
Girdle conditionFaceted
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
10.90 mm5.72 mm1.28 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790611716
Side View
Table 56.0%Crown 34.8°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 62.4%

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: Oct 30
Current: $4,793 CAD|Low: $773 CAD|High: $4,793 CAD|Avg: $2,031 CAD
Brilliant Earth
Retailer 2
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Retailer 22
October 30, 2026
Retailer 14$792 CAD
Retailer 10$886 CAD
Retailer 5$887 CAD
Retailer 3$982 CAD
Retailer 20$982 CAD
Retailer 4$1,073 CAD
Retailer 17$1,167 CAD
Retailer 8$1,269 CAD
Retailer 22$1,339 CAD
Retailer 18$1,492 CAD
Retailer 9$1,515 CAD
Retailer 2$1,534 CAD
Retailer 16$1,689 CAD
Retailer 21$2,438 CAD
Retailer 19$2,584 CAD
Retailer 7$2,854 CAD
Retailer 12$3,104 CAD
Retailer 6$3,184 CAD
Retailer 11$3,305 CAD
Retailer 15$3,577 CAD
Retailer 13$4,289 CAD
Brilliant Earth$4,793 CAD

40 data points across 22 retailers

22 retailers$792 CAD to $4,793 CAD

A
Cheapest Retailer
-
$792 CAD
$567 USD
A
Retailer 2
-
$886 CAD
$634 USD
View
Final sale: no returns
A
Retailer 3
-
$887 CAD
$635 USD
View
Retailer 4
-
$982 CAD
$703 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$982 CAD
$703 USD
View
A
Retailer 6
-
$1,073 CAD
HK$6,000 HKD
View
A
Retailer 7
-
$1,167 CAD
$835 USD
View
A
Retailer 8
-
$1,269 CAD
$908 USD
View
A
Retailer 9
-
$1,339 CAD
$958 USD
View
A
Retailer 10
-
$1,492 CAD
€1,017 EUR
View
A
Retailer 11
-
$1,515 CAD
$1,084 USD
View
B+
Retailer 12
-
$1,534 CAD
£864 GBP
View
B+
Retailer 13
-
$1,689 CAD
ZAR 19,522 ZAR
View
B+
Retailer 14
-
$2,438 CAD
$1,745 USD
View
B+
Retailer 15
-
$2,584 CAD
$1,849 USD
View
B+
Retailer 16
-
$2,854 CAD
£1,608 GBP
View
B
Retailer 17
-
$3,104 CAD
SGD 3,002 SGD
View
B
Retailer 18
-
$3,184 CAD
$2,279 USD
View
B
Retailer 19
-
$3,305 CAD
$2,365 USD
View
Retailer 20
-
$3,577 CAD
$2,560 USD
View
Price last confirmed 26 days ago
B
Retailer 21
-
$4,289 CAD
£2,417 GBP
View
Most Expensive
B
Brilliant Earth
19960689A · Oct 30
$4,793 CAD
$3,430 USD
View
21 more retailers have this diamond
Prices start from $792 CADSave up to $4,001 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
$792 CAD