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Marquise|Lab Grown|IGI

1.18ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG729539916

Certificate IGI LG729539916

Diamond specifications and retailer prices

From £787 GBP
$1,048 USD
As of October 29, 2026
Save £324 GBP (29%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,111 GBP at Kay Jewelers · As of October 30, 2026
View at Kay Jewelers

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG729539916 or 729539916. Listed at 4 retailers as of October 29, 2026, with prices from £787 to £1,111, a £324 spread on the same certified stone. Kay Jewelers lists it at £1,111. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG729539916
Dimensions11.09 × 5.58 × 3.38 mm
L/W Ratio1.99
Top View
11.09 mm5.58 mm1.18 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729539916
Side View
Table 60.0%CrownGirdle: MediumPavilionCulet: NoneDepth 60.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,111 GBP|Low: £787 GBP|High: £1,404 GBP|Avg: £1,042 GBP
Kay Jewelers
Retailer 2
Retailer 3
Retailer 4
September 28, 2026
Retailer 3£787 GBP
Retailer 2£909 GBP
Kay Jewelers£1,111 GBP
Retailer 4£1,111 GBP

2 data points across 4 retailers

4 retailers£787 GBP to £1,111 GBP

B+
Cheapest Retailer
-
£787 GBP
$1,048 USD
B
Retailer 2
-
£909 GBP
$1,210 USD
View
B
Retailer 3
-
£1,111 GBP
$1,480 USD
View
Most Expensive
B
Kay Jewelers
257157586 · Oct 30
£1,111 GBP
$1,480 USD
View
3 more retailers have this diamond
Prices start from £787 GBPSave up to £324 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.

B+
1.18ct Marquise
£787 GBP