Radiant|Lab Grown|IGI

1.05ct E SI1 Radiant Lab Grown Diamond

GD • E/SI1 • IGI LG597376840

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

Certificate IGI LG597376840

Diamond specifications and retailer prices

From €235 EUR
£206 GBP
As of October 30, 2026
Save €943 EUR (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,178 EUR at MOH London · As of October 26, 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 standard cut grade and certified by IGI LG597376840 or 597376840. Listed at 12 retailers as of October 26, 2026, with prices from €235 to €1,178, a €943 spread on the same certified stone. MOH London lists it at €1,178. 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
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG597376840
Dimensions7.33 × 5.03 × 3.38 mm
L/W Ratio1.46
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
7.33 mm5.03 mm1.05 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG597376840
Side View
Table 64.0%Crown 43.6°Girdle: MediumPavilion 35.4°Culet: NoneDepth 67.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,178 EUR|Low: €128 EUR|High: €1,190 EUR|Avg: €401 EUR|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 9€128 EUR
Retailer 2€235 EUR
Retailer 4€268 EUR
Retailer 7€269 EUR
Retailer 11€271 EUR
Retailer 6€276 EUR
Retailer 3€407 EUR
Retailer 10€432 EUR
Retailer 5€478 EUR
Retailer 8€530 EUR
MOH London€1,178 EUR

35 data points across 11 retailers

12 retailers€235 EUR to €1,178 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
B+
Retailer 3
-
€235 EUR
£206 GBP
View
B+
Retailer 4
-
€268 EUR
£235 GBP
View
B
Retailer 5
-
€269 EUR
$299 USD
View
B+
Retailer 6
-
€271 EUR
$302 USD
View
B+
Retailer 7
-
€276 EUR
View
B+
Retailer 8
-
€432 EUR
$481 USD
View
B
Retailer 9
-
€478 EUR
$532 USD
View
B
Retailer 10
-
€516 EUR
£452 GBP
View
B
Retailer 11
-
€530 EUR
$590 USD
View
Most Expensive
B
MOH London
LG597376840 · Oct 26
€1,178 EUR
£1,032 GBP
View
11 more retailers have this diamond
Prices start from €235 EURSave up to €943 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.

B+
1.05ct Radiant
€235 EUR