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Radiant|Lab Grown|IGI

1.00ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG541251120

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

Certificate IGI LG541251120

Diamond specifications and retailer prices

From €194 EUR
As of November 6, 2026
Save €768 EUR (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €962 EUR at MOH London · As of November 5, 2026
View at MOH London

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant 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 LG541251120 or 541251120. Listed at 14 retailers as of November 5, 2026, with prices from €194 to €962, a €768 spread on the same certified stone. MOH London lists it at €962. 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

1.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle31.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG541251120
Dimensions6.92 × 5.07 × 3.16 mm
L/W Ratio1.36
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
6.92 mm5.07 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG541251120
Side View
Table 66.0%Crown 41.1°Girdle: MED-STKPavilion 31.8°Culet: NoneDepth 62.3%

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: Nov 6
Current: €962 EUR|Low: €186 EUR|High: €977 EUR|Avg: €457 EUR|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7€194 EUR
Retailer 12€226 EUR
Retailer 3€241 EUR
Retailer 9€241 EUR
Retailer 2€310 EUR
Retailer 11€414 EUR
Retailer 5€442 EUR
Retailer 4€451 EUR
Retailer 8€519 EUR
Retailer 10€775 EUR
Retailer 6€777 EUR
MOH London€962 EUR

45 data points across 12 retailers

14 retailers€194 EUR to €962 EUR

A
Cheapest Retailer
-
€194 EUR
A
Retailer 2
-
€217 EUR
View
Final sale: no returns
A
Retailer 3
-
€226 EUR
View
Retailer 4
-
€241 EUR
View
Price last confirmed 13 days ago
A
Retailer 5
-
€241 EUR
View
A
Retailer 6
-
€310 EUR
View
B+
Retailer 7
-
€414 EUR
View
B+
Retailer 8
-
€442 EUR
View
B+
Retailer 9
-
€451 EUR
View
B+
Retailer 10
-
€516 EUR
View
B+
Retailer 11
-
€519 EUR
View
B
Retailer 12
-
€775 EUR
View
B
Retailer 13
-
€777 EUR
View
Most Expensive
B
MOH London
LG541251120 · Nov 5
€962 EUR
£846 GBP
View
13 more retailers have this diamond
Prices start from €194 EURSave up to €768 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
1.00ct Radiant
€194 EUR