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Radiant|Lab Grown|IGI

1.05ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG644487427

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

Certificate IGI LG644487427

Diamond specifications and retailer prices

From €141 EUR
$157 USD
As of October 25, 2026
Save €1,041 EUR (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,182 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG644487427 or 644487427. Listed at 15 retailers as of October 25, 2026, with prices from €141 to €1,182, a €1,041 spread on the same certified stone. MOH London lists it at €1,182. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.05
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.1°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644487427
Dimensions7.40 × 4.89 × 3.34 mm
L/W Ratio1.51
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.40 mm4.89 mm1.05 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644487427
Side View
Table 65.0%Crown 45.1°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 68.3%

Caratlytics Score

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

Price History

Last verified: Oct 25
Current: €1,182 EUR|Low: €132 EUR|High: €1,190 EUR|Avg: €358 EUR|+0.5%
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
October 30, 2026
Retailer 3€132 EUR
Retailer 4€139 EUR
Retailer 8€141 EUR
Retailer 12€184 EUR
Retailer 2€235 EUR
Retailer 7€268 EUR
Retailer 13€269 EUR
Retailer 6€271 EUR
Retailer 11€276 EUR
Retailer 10€418 EUR
Retailer 5€432 EUR
Retailer 9€478 EUR
Retailer 14€530 EUR
MOH London€1,182 EUR

36 data points across 14 retailers

15 retailers€141 EUR to €1,182 EUR

Retailer 1
-
€132 EUR
$147 USD
Price last confirmed 32 days ago
Retailer 2
-
€139 EUR
$155 USD
View
Price last confirmed 32 days ago
A
Retailer 3
-
€141 EUR
$157 USD
View
Retailer 4
-
€184 EUR
£161 GBP
View
Price last confirmed 13 days ago
A
Retailer 5
-
€235 EUR
£206 GBP
View
A
Retailer 6
-
€268 EUR
£235 GBP
View
B+
Retailer 7
-
€269 EUR
$299 USD
View
B+
Retailer 8
-
€271 EUR
$302 USD
View
B+
Retailer 9
-
€276 EUR
View
Retailer 10
-
€418 EUR
$465 USD
View
Price last confirmed 8 days ago
B+
Retailer 11
-
€432 EUR
$481 USD
View
B
Retailer 12
-
€478 EUR
$532 USD
View
B+
Retailer 13
-
€516 EUR
£452 GBP
View
B
Retailer 14
-
€530 EUR
$590 USD
View
Most Expensive
B
MOH London
LG644487427 · Oct 29
€1,182 EUR
£1,036 GBP
View
14 more retailers have this diamond
Prices start from €141 EURSave up to €1,041 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
1.05ct Radiant
€141 EUR