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Marquise|Lab Grown|IGI

3.78ct F VS2 Marquise Lab Grown Diamond

ID • F/VS2 • IGI LG799689920

Shape and cutting style on the report: Hexagonal modified brilliant

Certificate IGI LG799689920

Diamond specifications and retailer prices

From $1,858 CAD
$1,330 USD
As of October 31, 2026
Save $3,779 CAD (67%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,637 CAD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 3.78ct lab-grown marquise diamond

This 3.78ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG799689920 or 799689920. Listed at 7 retailers as of October 31, 2026, with prices from $1,858 to $5,637, a $3,779 spread on the same certified stone. Taylor and Hart lists it at $5,637. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.78
Carat
F
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle42.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799689920
Dimensions14.94 × 7.67 × 4.90 mm
L/W Ratio1.95
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.94 mm7.67 mm3.78 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799689920
Side View
Table 61.0%Crown 35.2°Girdle: STK-THKPavilion 42.9°Culet: NoneDepth 63.9%

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 31
Current: $5,484 CAD|Low: $1,858 CAD|High: $5,637 CAD|Avg: $4,170 CAD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Taylor and Hart
November 1, 2026
Retailer 4$1,858 CAD
Retailer 3$2,316 CAD
Retailer 2$2,573 CAD
Retailer 8$3,232 CAD
Retailer 5$5,224 CAD
Retailer 7$5,332 CAD
Retailer 6$5,427 CAD
Retailer 1$5,484 CAD
Taylor and Hart$5,637 CAD

25 data points across 9 retailers

7 retailers$1,858 CAD to $5,637 CAD

A
Cheapest Retailer
-
$1,858 CAD
$1,330 USD
A
Retailer 2
-
$2,316 CAD
$1,658 USD
View
B+
Retailer 3
-
$2,573 CAD
€1,754 EUR
View
B
Retailer 4
-
$5,224 CAD
$3,740 USD
View
B
Retailer 5
-
$5,427 CAD
SGD 5,250 SGD
View
B
Retailer 6
-
$5,484 CAD
£3,091 GBP
View
Most Expensive
B
Taylor and Hart
CX88C4E · Oct 31
$5,637 CAD
$4,035 USD
View
6 more retailers have this diamond
Prices start from $1,858 CADSave up to $3,779 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
3.78ct Marquise
$1,858 CAD