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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG847640520

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG847640520

Diamond specifications and retailer prices

From $373 CAD
$267 USD
As of October 30, 2026
Save $1,625 CAD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,998 CAD at With Clarity · As of October 31, 2026
View at With Clarity

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 LG847640520 or 847640520. Listed at 12 retailers as of October 30, 2026, with prices from $373 to $1,998, a $1,625 spread on the same certified stone. With Clarity lists it at $1,998. 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 angle36°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847640520
Dimensions12.53 × 6.32 × 3.95 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.53 mm6.32 mm1.78 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847640520
Side View
Table 60.0%Crown 36°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
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: $541 CAD|Low: $373 CAD|High: $1,998 CAD|Avg: $1,146 CAD|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
November 1, 2026
Retailer 11$373 CAD
Retailer 9$433 CAD
Retailer 1$541 CAD
Retailer 5$684 CAD
Retailer 2$761 CAD
Retailer 3$948 CAD
Retailer 10$1,076 CAD
Retailer 4$1,422 CAD
Retailer 7$1,488 CAD
Retailer 8$1,697 CAD
Retailer 6$1,865 CAD
With Clarity$1,998 CAD

9 data points across 12 retailers

12 retailers$373 CAD to $1,998 CAD

A
Cheapest Retailer
-
$373 CAD
$267 USD
A
Retailer 2
-
$433 CAD
$310 USD
View
A
Retailer 3
-
$541 CAD
£305 GBP
View
A
Retailer 4
-
$684 CAD
$490 USD
View
Retailer 5
-
$761 CAD
€519 EUR
View
Price last confirmed 7 days ago
A
Retailer 6
-
$948 CAD
$679 USD
View
A
Retailer 7
-
$1,076 CAD
A$1,185 AUD
View
B+
Retailer 8
-
$1,422 CAD
$1,018 USD
View
B+
Retailer 9
-
$1,488 CAD
$1,065 USD
View
B
Retailer 10
-
$1,697 CAD
$1,215 USD
View
B
Retailer 11
-
$1,865 CAD
£1,051 GBP
View
Most Expensive
B
With Clarity
847640520 · Oct 31
$1,998 CAD
$1,430 USD
View
11 more retailers have this diamond
Prices start from $373 CADSave up to $1,625 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
$373 CAD