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Marquise|Lab Grown|IGI

1.40ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG786656003

Certificate IGI LG786656003

Diamond specifications and retailer prices

From £778 GBP
$1,050 USD
As of November 4, 2026
1 retailer carries this diamond
Only listing: £778 GBP at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG786656003 or 786656003. Listed at a single retailer as of November 4, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG786656003
Dimensions11.13 × 5.89 × 3.72 mm
L/W Ratio1.89
Top View
11.13 mm5.89 mm1.40 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786656003
Side View
Table 62.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 63.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: £244 GBP|Low: £244 GBP|High: £289 GBP|Avg: £270 GBP|-0.9%
Retailer 1
Retailer 2
April 14, 2026
Retailer 1£244 GBP
Retailer 2£289 GBP

4 data points across 2 retailers

1 retailer

B
Brilliant Earth
18424109A · Nov 4
£778 GBP
$1,050 USD
View

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B
1.40ct Marquise
£778 GBP