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Marquise|Lab Grown|IGI

1.18ct E VS2 Marquise Lab Grown Diamond

EX • E/VS2 • IGI LG839682686

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG839682686

Diamond specifications and retailer prices

From £156 GBP
$208 USD
As of October 30, 2026
Save £169 GBP (52%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £447 GBP at Rare Carat · As of October 19, 2026
View at Rare Carat

About this 1.18ct lab-grown marquise diamond

This 1.18ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839682686 or 839682686. Listed at 3 retailers as of October 30, 2026, with a 108% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
E
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839682686
Dimensions10.85 × 5.45 × 3.46 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.85 mm5.45 mm1.18 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839682686
Side View
Table 62.0%Crown 34.8°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 63.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £447 GBP|Low: £155 GBP|High: £454 GBP|Avg: £341 GBP|-1.7%
Rare Carat
Retailer 2
Retailer 3
October 30, 2026
Retailer 3£156 GBP
Retailer 2£325 GBP
Rare Carat£447 GBP

26 data points across 3 retailers

3 retailers£156 GBP to £325 GBP

A
Cheapest Retailer
-
£156 GBP
$208 USD
Final sale: no returns
A
Retailer 2
-
£325 GBP
View
Most Expensive
Rare Carat
839682686 · Oct 19
£447 GBP
$595 USD
View
Price last confirmed 11 days ago
2 more retailers have this diamond
Prices start from £156 GBPSave up to £169 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
1.18ct Marquise
£156 GBP