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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG818682269

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818682269

Diamond specifications and retailer prices

From $394 CAD
$282 USD
As of October 30, 2026
Save $1,662 CAD (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,056 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 LG818682269 or 818682269. Listed at 22 retailers as of October 30, 2026, with prices from $394 to $2,056, a $1,662 spread on the same certified stone. With Clarity lists it at $2,056. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818682269
Dimensions11.88 × 6.26 × 3.97 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.88 mm6.26 mm1.78 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818682269
Side View
Table 60.0%Crown 38.7°Girdle: STK-VTKPavilion 39.2°Culet: NoneDepth 63.4%

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: $1,957 CAD|Low: $394 CAD|High: $2,056 CAD|Avg: $1,042 CAD|-1.9%
Retailer 1
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
With Clarity
November 1, 2026
Retailer 10$394 CAD
Retailer 11$440 CAD
Retailer 7$457 CAD
Retailer 4$489 CAD
Retailer 6$489 CAD
Retailer 12$571 CAD
Retailer 3$705 CAD
Retailer 19$806 CAD
Retailer 20$839 CAD
Retailer 14$862 CAD
Retailer 17$972 CAD
Retailer 8$974 CAD
Retailer 18$1,136 CAD
Retailer 15$1,268 CAD
Retailer 16$1,508 CAD
Retailer 13$1,567 CAD
Retailer 5$1,570 CAD
Retailer 9$1,640 CAD
Retailer 2$1,725 CAD
Retailer 1$1,957 CAD
With Clarity$2,056 CAD

25 data points across 21 retailers

22 retailers$394 CAD to $2,056 CAD

A
Cheapest Retailer
-
$394 CAD
$282 USD
A
Retailer 2
-
$440 CAD
$315 USD
View
Final sale: no returns
A
Retailer 3
-
$457 CAD
$327 USD
View
Retailer 4
-
$489 CAD
$350 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$489 CAD
$350 USD
View
A
Retailer 6
-
$571 CAD
£322 GBP
View
A
Retailer 7
-
$705 CAD
$505 USD
View
A
Retailer 8
-
$806 CAD
$577 USD
View
A
Retailer 9
-
$839 CAD
ZAR 9,705 ZAR
View
A
Retailer 10
-
$862 CAD
£486 GBP
View
A
Retailer 11
-
$972 CAD
$696 USD
View
A
Retailer 12
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$974 CAD
$697 USD
View
A
Retailer 13
-
$1,136 CAD
A$1,251 AUD
View
B+
Retailer 14
-
$1,268 CAD
$908 USD
View
B+
Retailer 15
-
$1,508 CAD
A$1,661 AUD
View
B+
Retailer 16
-
$1,567 CAD
SGD 1,516 SGD
View
B+
Retailer 17
-
$1,570 CAD
$1,124 USD
View
B+
Retailer 18
-
$1,640 CAD
$1,174 USD
View
B+
Retailer 19
-
$1,725 CAD
$1,235 USD
View
B+
Retailer 20
-
$1,879 CAD
$1,345 USD
View
B+
Retailer 21
-
$1,957 CAD
£1,103 GBP
View
Most Expensive
B
With Clarity
818682269 · Oct 31
$2,056 CAD
$1,472 USD
View
21 more retailers have this diamond
Prices start from $394 CADSave up to $1,662 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
$394 CAD