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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 €195 EUR
$217 USD
As of October 27, 2026
Save €781 EUR (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €976 EUR at MOH London · As of October 29, 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 27, 2026, with prices from €195 to €976, a €781 spread on the same certified stone. MOH London lists it at €976. 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
Colour
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

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 27
Current: €976 EUR|Low: €124 EUR|High: €982 EUR|Avg: €496 EUR|-0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 10€124 EUR
Retailer 9€217 EUR
Retailer 7€288 EUR
Retailer 6€415 EUR
Retailer 2€449 EUR
Retailer 8€456 EUR
Retailer 5€778 EUR
Retailer 3€782 EUR
Retailer 4€791 EUR
MOH London€976 EUR

41 data points across 10 retailers

14 retailers€195 EUR to €976 EUR

A
Cheapest Retailer
-
€195 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
-
€243 EUR
$270 USD
View
A
Retailer 5
-
€243 EUR
$270 USD
View
A
Retailer 6
-
€288 EUR
$320 USD
View
B+
Retailer 7
-
€415 EUR
$462 USD
View
B+
Retailer 8
-
€449 EUR
£394 GBP
View
B+
Retailer 9
-
€456 EUR
$507 USD
View
B
Retailer 10
-
€506 EUR
HK$4,400 HKD
View
B
Retailer 11
-
€778 EUR
$866 USD
View
B
Retailer 12
-
€782 EUR
$870 USD
View
B
Retailer 13
-
€791 EUR
$880 USD
View
Most Expensive
B
MOH London
LG634405513 · Oct 29
€976 EUR
£855 GBP
View
13 more retailers have this diamond
Prices start from €195 EURSave up to €781 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
€195 EUR