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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 £196 GBP
As of October 30, 2026
Save £788 GBP (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £984 GBP 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 £196 to £984, a £788 spread on the same certified stone. MOH London lists it at £984. 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: £984 GBP|Low: £107 GBP|High: £995 GBP|Avg: £335 GBP|+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£107 GBP
Retailer 2£196 GBP
Retailer 4£224 GBP
Retailer 7£225 GBP
Retailer 11£227 GBP
Retailer 6£231 GBP
Retailer 3£340 GBP
Retailer 10£361 GBP
Retailer 5£399 GBP
Retailer 8£443 GBP
MOH London£984 GBP

35 data points across 11 retailers

12 retailers£196 GBP to £984 GBP

Retailer 1
-
£110 GBP
$147 USD
Price last confirmed 32 days ago
Retailer 2
-
£116 GBP
$155 USD
View
Price last confirmed 32 days ago
B+
Retailer 3
-
£196 GBP
View
B+
Retailer 4
-
£224 GBP
View
B
Retailer 5
-
£225 GBP
$299 USD
View
B+
Retailer 6
-
£227 GBP
$302 USD
View
B+
Retailer 7
-
£231 GBP
€293 EUR
View
B+
Retailer 8
-
£361 GBP
$481 USD
View
B
Retailer 9
-
£399 GBP
$532 USD
View
B
Retailer 10
-
£431 GBP
View
B
Retailer 11
-
£443 GBP
$590 USD
View
Most Expensive
B
MOH London
LG597376840 · Oct 26
£984 GBP
View
11 more retailers have this diamond
Prices start from £196 GBPSave up to £788 GBP

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
£196 GBP