Marquise|Lab Grown|IGI

3.80ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG812633618

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812633618

Diamond specifications and retailer prices

From $682 CAD
$488 USD
As of October 31, 2026
Save $4,291 CAD (86%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,973 CAD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.8ct lab-grown marquise diamond

This 3.8ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG812633618 or 812633618. Listed at 5 retailers as of October 29, 2026, with prices from $682 to $4,973, a $4,291 spread on the same certified stone. Brilliant Earth lists it at $4,973. 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

3.80
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812633618
Dimensions17.12 × 8.19 × 4.91 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.12 mm8.19 mm3.80 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812633618
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $4,973 CAD|Low: $673 CAD|High: $5,127 CAD|Avg: $2,140 CAD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 5$677 CAD
Retailer 3$682 CAD
Retailer 7$1,048 CAD
Retailer 2$1,289 CAD
Retailer 8$1,410 CAD
Retailer 9$1,725 CAD
Retailer 6$1,852 CAD
Retailer 10$2,738 CAD
Retailer 4$3,828 CAD
Brilliant Earth$4,973 CAD

36 data points across 10 retailers

5 retailers$682 CAD to $4,973 CAD

A
Cheapest Retailer
-
$682 CAD
$488 USD
Final sale: no returns
A
Retailer 2
-
$1,289 CAD
£727 GBP
View
Retailer 3
-
$1,410 CAD
ZAR 16,302 ZAR
View
Price last confirmed 67 days ago
Retailer 4
-
$3,828 CAD
$2,740 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
20331184A · Oct 29
$4,973 CAD
$3,560 USD
View
4 more retailers have this diamond
Prices start from $682 CADSave up to $4,291 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
3.80ct Marquise
$682 CAD