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Marquise|Lab Grown|IGI

1.40ct F VVS2 Marquise Lab Grown Diamond

F/VVS2 • IGI LG778646312

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG778646312

Diamond specifications and retailer prices

From $1,666 AUD
$1,170 USD
As of October 31, 2026
2 retailers carry this diamond
Most expensive: $1,666 AUD at Brilliant Earth
View at Brilliant Earth

About this 1.4ct lab-grown marquise diamond

This 1.4ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included) and certified by IGI LG778646312 or 778646312. Listed at 2 retailers as of October 31, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.40
Carat
F
Colour
VVS2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778646312
Dimensions11.91 × 5.93 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.91 mm5.93 mm1.40 ctF / VVS2
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778646312
Side View
Table 60.0%Crown 32.6°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 59.0%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 31
Current: $1,666 AUD|Low: $208 AUD|High: $153,231 AUD|Avg: $1,575 AUD|-30.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
June 19, 2026
Retailer 2$835 AUD
Retailer 4$967 AUD
Retailer 9$1,019 AUD
Retailer 5$1,105 AUD
Retailer 8$1,173 AUD
Retailer 3$1,333 AUD
Retailer 6$1,399 AUD
Retailer 7$1,480 AUD
Brilliant Earth$1,666 AUD
Retailer 10$1,757 AUD

64 data points across 10 retailers

2 retailers

Retailer 1
-
$1,333 AUD
Price last confirmed 139 days ago
Most Expensive
C
Brilliant Earth
18447750A · Oct 31
$1,666 AUD
$1,170 USD
View
1 more retailer has this diamond

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.

C
1.40ct Marquise
$1,666 AUD