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Radiant|Lab Grown|IGI

1.05ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG662486441

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

Certificate IGI LG662486441

Diamond specifications and retailer prices

From £86 GBP
$115 USD
As of October 30, 2026
Save £811 GBP (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £897 GBP 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 top-tier cut grade and certified by IGI LG662486441 or 662486441. Listed at 13 retailers as of October 29, 2026, with prices from £86 to £897, a £811 spread on the same certified stone. MOH London lists it at £897. 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

1.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662486441
Dimensions7.35 × 4.98 × 3.24 mm
L/W Ratio1.48
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.35 mm4.98 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662486441
Side View
Table 67.0%Crown 44°Girdle: STK-THKPavilion 34.1°Culet: NoneDepth 65.1%

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: Oct 30
Current: £897 GBP|Low: £86 GBP|High: £897 GBP|Avg: £298 GBP
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
Retailer 15
Retailer 16
October 30, 2026
Retailer 2£86 GBP
Retailer 4£100 GBP
Retailer 11£113 GBP
Retailer 3£124 GBP
Retailer 9£139 GBP
Retailer 5£190 GBP
Retailer 16£203 GBP
Retailer 15£208 GBP
Retailer 10£217 GBP
Retailer 14£222 GBP
Retailer 12£293 GBP
Retailer 13£343 GBP
Retailer 7£385 GBP
Retailer 6£473 GBP
Retailer 8£769 GBP
MOH London£897 GBP

3 data points across 16 retailers

13 retailers£86 GBP to £897 GBP

A
Cheapest Retailer
-
£86 GBP
$115 USD
A
Retailer 2
-
£100 GBP
$134 USD
View
A
Retailer 3
-
£113 GBP
$152 USD
View
A
Retailer 4
-
£124 GBP
HK$1,300 HKD
View
A
Retailer 5
-
£139 GBP
View
A
Retailer 6
-
£203 GBP
View
B+
Retailer 7
-
£208 GBP
$279 USD
View
A
Retailer 8
-
£217 GBP
View
A
Retailer 9
-
£222 GBP
$298 USD
View
B+
Retailer 10
-
£293 GBP
$393 USD
View
B+
Retailer 11
-
£343 GBP
$460 USD
View
B+
Retailer 12
-
£424 GBP
View
Most Expensive
B
MOH London
LG662486441 · Oct 29
£897 GBP
View
12 more retailers have this diamond
Prices start from £86 GBPSave up to £811 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.

A
1.05ct Radiant
£86 GBP