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Radiant|Lab Grown|IGI

1.09ct E SI2 Radiant Lab Grown Diamond

ID • E/SI2 • IGI LG634405513

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG634405513

Diamond specifications and retailer prices

From €194 EUR
$217 USD
As of October 30, 2026
Save €773 EUR (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €967 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG634405513 or 634405513. Listed at 14 retailers as of October 30, 2026, with prices from €194 to €967, a €773 spread on the same certified stone. MOH London lists it at €967. 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

1.09
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634405513
Dimensions6.62 × 5.03 × 3.63 mm
L/W Ratio1.32
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.62 mm5.03 mm1.09 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634405513
Side View
Table 65.0%Crown 40.8°Girdle: STK-THKPavilion 33.4°Culet: NoneDepth 72.2%

Caratlytics Score

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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: €967 EUR|Low: €124 EUR|High: €979 EUR|Avg: €430 EUR|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 6€124 EUR
Retailer 9€194 EUR
Retailer 5€217 EUR
Retailer 13€226 EUR
Retailer 10€242 EUR
Retailer 14€242 EUR
Retailer 3€286 EUR
Retailer 12€414 EUR
Retailer 2€448 EUR
Retailer 4€454 EUR
Retailer 7€555 EUR
Retailer 11€775 EUR
Retailer 8€779 EUR
MOH London€967 EUR

44 data points across 14 retailers

14 retailers€194 EUR to €967 EUR

A
Cheapest Retailer
-
€194 EUR
$217 USD
A
Retailer 2
-
€217 EUR
$242 USD
View
Final sale: no returns
A
Retailer 3
-
€226 EUR
$252 USD
View
A
Retailer 4
-
€242 EUR
$270 USD
View
A
Retailer 5
-
€242 EUR
$270 USD
View
A
Retailer 6
-
€286 EUR
$320 USD
View
B+
Retailer 7
-
€414 EUR
$462 USD
View
B+
Retailer 8
-
€448 EUR
£394 GBP
View
B+
Retailer 9
-
€454 EUR
$507 USD
View
B
Retailer 10
-
€504 EUR
HK$4,400 HKD
View
B+
Retailer 11
-
€555 EUR
$620 USD
View
B
Retailer 12
-
€775 EUR
$866 USD
View
B
Retailer 13
-
€779 EUR
$870 USD
View
Most Expensive
B
MOH London
LG634405513 · Nov 1
€967 EUR
£851 GBP
View
13 more retailers have this diamond
Prices start from €194 EURSave up to €773 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
1.09ct Radiant
€194 EUR