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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG803611087

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG803611087

Diamond specifications and retailer prices

From $443 CAD
$317 USD
As of October 30, 2026
Save $3,496 CAD (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $3,939 CAD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.78ct lab-grown marquise diamond

This 1.78ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG803611087 or 803611087. Listed at 21 retailers as of October 30, 2026, with prices from $443 to $3,939, a $3,496 spread on the same certified stone. Do Amore Diamonds lists it at $3,939. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803611087
Dimensions12.20 × 6.36 × 3.98 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.20 mm6.36 mm1.78 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803611087
Side View
Table 61.0%Crown 35.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.6%

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: $3,939 CAD|Low: $443 CAD|High: $3,939 CAD|Avg: $1,403 CAD
Do Amore Diamonds
Retailer 2
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Retailer 25
November 1, 2026
Retailer 23$443 CAD
Retailer 5$514 CAD
Retailer 8$686 CAD
Retailer 13$709 CAD
Retailer 16$713 CAD
Retailer 6$729 CAD
Retailer 10$735 CAD
Retailer 25$768 CAD
Retailer 7$781 CAD
Retailer 15$849 CAD
Retailer 4$939 CAD
Retailer 14$1,313 CAD
Retailer 21$1,409 CAD
Retailer 18$1,461 CAD
Retailer 20$1,578 CAD
Retailer 24$1,613 CAD
Retailer 22$1,711 CAD
Retailer 11$1,805 CAD
Retailer 17$1,856 CAD
Retailer 3$1,951 CAD
Retailer 9$2,217 CAD
Retailer 2$2,372 CAD
Retailer 12$2,387 CAD
Retailer 19$3,311 CAD
Do Amore Diamonds$3,939 CAD

16 data points across 25 retailers

21 retailers$443 CAD to $3,939 CAD

A
Cheapest Retailer
-
$443 CAD
$317 USD
A
Retailer 2
-
$514 CAD
$368 USD
View
A
Retailer 3
-
$686 CAD
$491 USD
View
A
Retailer 4
-
$709 CAD
£400 GBP
View
A
Retailer 5
-
$729 CAD
$522 USD
View
B+
Retailer 6
-
$735 CAD
$526 USD
View
A
Retailer 7
-
$768 CAD
$550 USD
View
A
Retailer 8
-
$781 CAD
$559 USD
View
A
Retailer 9
-
$939 CAD
€640 EUR
View
Retailer 10
-
$1,313 CAD
$940 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
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$1,409 CAD
A$1,552 AUD
View
B+
Retailer 12
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$1,578 CAD
A$1,738 AUD
View
B+
Retailer 13
-
$1,613 CAD
$1,155 USD
View
B+
Retailer 14
-
$1,711 CAD
$1,225 USD
View
B+
Retailer 15
-
$1,805 CAD
View
B
Retailer 16
-
$1,951 CAD
$1,397 USD
View
B
Retailer 17
-
$2,217 CAD
$1,587 USD
View
B
Retailer 18
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$2,372 CAD
£1,337 GBP
View
B
Retailer 19
-
$2,387 CAD
$1,709 USD
View
B
Retailer 20
-
$3,311 CAD
$2,370 USD
View
Most Expensive
B
Do Amore Diamonds
27-B1329BF40 · Oct 31
$3,939 CAD
$2,820 USD
View
20 more retailers have this diamond
Prices start from $443 CADSave up to $3,496 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
1.78ct Marquise
$443 CAD