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Marquise|Lab Grown|IGI

1.18ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG805617403

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG805617403

Diamond specifications and retailer prices

From £156 GBP
$208 USD
As of October 30, 2026
Save £1,338 GBP (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,494 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 LG805617403 or 805617403. Listed at 19 retailers as of October 29, 2026, with prices from £156 to £1,494, a £1,338 spread on the same certified stone. Do Amore Diamonds lists it at £1,494. 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
Crown angle33.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805617403
Dimensions11.11 × 5.55 × 3.43 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.11 mm5.55 mm1.18 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805617403
Side View
Table 59.0%Crown 33.6°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,494 GBP|Low: £107 GBP|High: £1,622 GBP|Avg: £489 GBP|-7.9%
Do Amore Diamonds
Retailer 2
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Retailer 17
October 29, 2026
Retailer 8£107 GBP
Retailer 4£190 GBP
Retailer 17£230 GBP
Retailer 3£260 GBP
Retailer 14£320 GBP
Retailer 7£331 GBP
Retailer 12£344 GBP
Retailer 5£361 GBP
Retailer 6£421 GBP
Retailer 15£424 GBP
Retailer 11£521 GBP
Retailer 16£624 GBP
Retailer 10£665 GBP
Retailer 2£736 GBP
Retailer 9£804 GBP
Retailer 13£856 GBP
Do Amore Diamonds£1,494 GBP

34 data points across 17 retailers

19 retailers£156 GBP to £1,494 GBP

Retailer 1
-
£146 GBP
$195 USD
Price last confirmed 30 days ago
A
Retailer 2
-
£156 GBP
$208 USD
View
Retailer 3
-
£170 GBP
$226 USD
View
Price last confirmed 31 days ago
Retailer 4
-
£179 GBP
$238 USD
View
Price last confirmed 31 days ago
A
Retailer 5
-
£190 GBP
$253 USD
View
Final sale: no returns
A
Retailer 6
-
£230 GBP
$307 USD
View
B+
Retailer 7
-
£260 GBP
$346 USD
View
A
Retailer 8
-
£320 GBP
$426 USD
View
A
Retailer 9
-
£344 GBP
€436 EUR
View
B+
Retailer 10
-
£424 GBP
A$868 AUD
View
B+
Retailer 11
-
£521 GBP
A$1,067 AUD
View
B+
Retailer 12
-
£624 GBP
$831 USD
View
Retailer 13
-
£635 GBP
$845 USD
View
Price last confirmed 30 days ago
Retailer 14
-
£644 GBP
$857 USD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
£665 GBP
$885 USD
View
B
Retailer 16
-
£736 GBP
A$1,507 AUD
View
Retailer 17
-
£804 GBP
SGD 1,446 SGD
View
Price last confirmed 29 days ago
B
Retailer 18
-
£856 GBP
View
Most Expensive
B
Do Amore Diamonds
27-9D6B7683C · Oct 29
£1,494 GBP
$1,990 USD
View
18 more retailers have this diamond
Prices start from £156 GBPSave up to £1,338 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