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Marquise|Lab Grown|IGI

1.09ct E FL Marquise Lab Grown Diamond

ID • E/FL • IGI LG843638113

Certificate IGI LG843638113

Diamond specifications and retailer prices

From £307 GBP
$412 USD
As of October 31, 2026
Save £491 GBP (61%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £799 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 1.09ct lab-grown marquise diamond

This 1.09ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG843638113 or 843638113. Listed at 3 retailers as of October 30, 2026, with prices from £307 to £799, a £491 spread on the same certified stone. With Clarity lists it at £799. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG843638113
Dimensions11.40 × 5.23 × 3.11 mm
L/W Ratio2.18
Top View
11.40 mm5.23 mm1.09 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843638113
Side View
Table 62.0%CrownGirdlePavilionCuletDepth 59.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £434 GBP|Low: £307 GBP|High: £799 GBP|Avg: £585 GBP
Retailer 1
Retailer 2
With Clarity
October 31, 2026
Retailer 2£307 GBP
Retailer 1£434 GBP
With Clarity£799 GBP

2 data points across 3 retailers

3 retailers£307 GBP to £799 GBP

A
Cheapest Retailer
-
£307 GBP
$412 USD
A
Retailer 2
-
£434 GBP
View
Most Expensive
B
With Clarity
843638113 · Oct 30
£799 GBP
$1,070 USD
View
2 more retailers have this diamond
Prices start from £307 GBPSave up to £491 GBP

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
1.09ct Marquise
£307 GBP