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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG825654747

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825654747

Diamond specifications and retailer prices

From $395 CAD
$283 USD
As of October 30, 2026
Save $1,672 CAD (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,067 CAD at With Clarity · As of November 1, 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 LG825654747 or 825654747. Listed at 22 retailers as of October 30, 2026, with prices from $395 to $2,067, a $1,672 spread on the same certified stone. With Clarity lists it at $2,067. 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 angle32.3°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825654747
Dimensions12.37 × 6.44 × 3.87 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
12.37 mm6.44 mm1.78 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825654747
Side View
Table 57.0%Crown 32.3°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 60.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $846 CAD|Low: $395 CAD|High: $2,088 CAD|Avg: $1,103 CAD|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 10
Retailer 11
Retailer 12
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
With Clarity
November 2, 2026
Retailer 10$395 CAD
Retailer 11$441 CAD
Retailer 7$460 CAD
Retailer 4$490 CAD
Retailer 6$490 CAD
Retailer 15$573 CAD
Retailer 2$712 CAD
Retailer 20$809 CAD
Retailer 1$846 CAD
Retailer 16$866 CAD
Retailer 8$974 CAD
Retailer 18$975 CAD
Retailer 19$1,141 CAD
Retailer 17$1,268 CAD
Retailer 3$1,518 CAD
Retailer 13$1,575 CAD
Retailer 5$1,577 CAD
Retailer 9$1,648 CAD
Retailer 21$1,725 CAD
Retailer 14$1,887 CAD
Retailer 12$1,966 CAD
With Clarity$2,067 CAD

22 data points across 22 retailers

22 retailers$395 CAD to $2,067 CAD

A
Cheapest Retailer
-
$395 CAD
$283 USD
A
Retailer 2
-
$441 CAD
$316 USD
View
Final sale: no returns
A
Retailer 3
-
$460 CAD
$329 USD
View
Retailer 4
-
$490 CAD
$351 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$490 CAD
$351 USD
View
A
Retailer 6
-
$573 CAD
£323 GBP
View
A
Retailer 7
-
$712 CAD
$510 USD
View
A
Retailer 8
-
$809 CAD
$579 USD
View
A
Retailer 9
-
$846 CAD
ZAR 9,785 ZAR
View
A
Retailer 10
-
$866 CAD
£488 GBP
View
A
Retailer 11
-
$974 CAD
$697 USD
View
A
Retailer 12
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$975 CAD
$698 USD
View
A
Retailer 13
-
$1,141 CAD
A$1,257 AUD
View
A
Retailer 14
-
$1,268 CAD
$908 USD
View
Retailer 15
-
$1,518 CAD
A$1,672 AUD
View
Price last confirmed 7 days ago
B+
Retailer 16
-
$1,575 CAD
SGD 1,524 SGD
View
B+
Retailer 17
-
$1,577 CAD
$1,129 USD
View
B+
Retailer 18
-
$1,648 CAD
$1,180 USD
View
B+
Retailer 19
-
$1,725 CAD
$1,235 USD
View
B+
Retailer 20
-
$1,887 CAD
$1,351 USD
View
B+
Retailer 21
-
$1,966 CAD
£1,108 GBP
View
Most Expensive
B
With Clarity
825654747 · Nov 1
$2,067 CAD
$1,480 USD
View
21 more retailers have this diamond
Prices start from $395 CADSave up to $1,672 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
$395 CAD