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Oval|Lab Grown|IGI

1.18ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG818604621

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818604621

Diamond specifications and retailer prices

From €140 EUR
$156 USD
As of October 29, 2026
Save €675 EUR (83%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €815 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.18ct lab-grown oval diamond

This 1.18ct lab-grown oval sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG818604621 or 818604621. Listed at 8 retailers as of October 29, 2026, with prices from €140 to €815, a €675 spread on the same certified stone. MOH London lists it at €815. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.18
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818604621
Dimensions8.81 × 6.04 × 3.65 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.81 mm6.04 mm1.18 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818604621
Side View
Table 60.0%Crown 33.4°Girdle: THN-MEDPavilion 41.5°Culet: NoneDepth 60.4%

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 29
Current: €815 EUR|Low: €139 EUR|High: €815 EUR|Avg: €525 EUR|+3.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 4€140 EUR
Retailer 2€162 EUR
Retailer 5€302 EUR
Retailer 7€464 EUR
Retailer 6€558 EUR
Retailer 8€582 EUR
Retailer 3€589 EUR
Retailer 9€697 EUR
MOH London€815 EUR

19 data points across 9 retailers

8 retailers€140 EUR to €815 EUR

A
Cheapest Retailer
-
€140 EUR
$156 USD
A
Retailer 2
-
€162 EUR
$181 USD
View
B+
Retailer 3
-
€464 EUR
$518 USD
View
B+
Retailer 4
-
€558 EUR
$623 USD
View
B
Retailer 5
-
€582 EUR
$650 USD
View
B
Retailer 6
-
€589 EUR
$658 USD
View
Retailer 7
-
€697 EUR
SGD 1,053 SGD
View
Price last confirmed 19 days ago
Most Expensive
B
MOH London
LG818604621 · Oct 29
€815 EUR
£717 GBP
View
7 more retailers have this diamond
Prices start from €140 EURSave up to €675 EUR

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 Oval
€140 EUR