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Marquise|Lab Grown|IGI

1.18ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG602313375

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG602313375

Diamond specifications and retailer prices

From £575 GBP
$770 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: £575 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 1.18ct lab-grown marquise diamond

This 1.18ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG602313375 or 602313375. Listed at a single retailer as of October 31, 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

1.18
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG602313375
Dimensions11.16 × 5.45 × 3.36 mm
L/W Ratio2.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
11.16 mm5.45 mm1.18 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG602313375
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 40°Culet: NoneDepth 61.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: £575 GBP|Low: £133 GBP|High: £949 GBP|Avg: £519 GBP|-28.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 4, 2026
Retailer 5£133 GBP
Retailer 6£305 GBP
Retailer 4£323 GBP
Retailer 3£355 GBP
Retailer 7£388 GBP
Retailer 10£446 GBP
Retailer 2£498 GBP
Brilliant Earth£575 GBP
Retailer 8£609 GBP
Retailer 9£949 GBP

75 data points across 10 retailers

1 retailer

B
Brilliant Earth
21204867B · Oct 31
£575 GBP
$770 USD
View

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.

B
1.18ct Marquise
£575 GBP