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Radiant|Lab Grown|IGI

1.05ct E SI1 Radiant Lab Grown Diamond

GD • E/SI1 • IGI LG831615708

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

Certificate IGI LG831615708

Diamond specifications and retailer prices

From €127 EUR
$141 USD
As of October 30, 2026
Save €607 EUR (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €734 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 LG831615708 or 831615708. Listed at 9 retailers as of October 26, 2026, with prices from €127 to €734, a €607 spread on the same certified stone. MOH London lists it at €734. 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 angle43.4°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831615708
Dimensions7.28 × 4.99 × 3.34 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.28 mm4.99 mm1.05 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831615708
Side View
Table 62.0%Crown 43.4°Girdle: MediumPavilion 35°Culet: NoneDepth 66.9%

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 30
Current: €734 EUR|Low: €121 EUR|High: €1,278 EUR|Avg: €413 EUR|-42.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 26, 2026
Retailer 5€127 EUR
Retailer 8€146 EUR
Retailer 3€204 EUR
Retailer 2€277 EUR
Retailer 9€446 EUR
Retailer 6€503 EUR
Retailer 7€531 EUR
Retailer 4€532 EUR
MOH London€734 EUR

25 data points across 9 retailers

9 retailers€127 EUR to €734 EUR

A
Cheapest Retailer
-
€127 EUR
$141 USD
B+
Retailer 2
-
€146 EUR
$163 USD
View
Retailer 3
-
€204 EUR
£179 GBP
View
Price last confirmed 13 days ago
B+
Retailer 4
-
€277 EUR
View
B
Retailer 5
-
€446 EUR
$496 USD
View
B
Retailer 6
-
€503 EUR
$560 USD
View
Retailer 7
-
€531 EUR
SGD 799 SGD
View
Price last confirmed 17 days ago
B
Retailer 8
-
€532 EUR
$592 USD
View
Most Expensive
B
MOH London
LG831615708 · Oct 26
€734 EUR
£643 GBP
View
8 more retailers have this diamond
Prices start from €127 EURSave up to €607 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
€127 EUR