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Radiant|Lab Grown|IGI

1.00ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG813649516

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

Certificate IGI LG813649516

Diamond specifications and retailer prices

From £98 GBP
As of November 6, 2026
Save £911 GBP (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,009 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 1ct lab-grown radiant diamond

This 1ct 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 LG813649516 or 813649516. Listed at 10 retailers as of November 5, 2026, with prices from £98 to £1,009, a £911 spread on the same certified stone. MOH London lists it at £1,009. 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

1.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.6°
Pavilion angle42.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813649516
Dimensions7.02 × 4.79 × 3.45 mm
L/W Ratio1.47
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.02 mm4.79 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813649516
Side View
Table 62.0%Crown 46.6°Girdle: MediumPavilion 42.6°Culet: NoneDepth 72.0%

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: Nov 6
Current: £1,009 GBP|Low: £96 GBP|High: £1,048 GBP|Avg: £377 GBP|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 3£98 GBP
Retailer 6£114 GBP
Retailer 2£156 GBP
Retailer 7£220 GBP
Retailer 8£362 GBP
Retailer 4£389 GBP
Retailer 5£411 GBP
Retailer 10£411 GBP
Retailer 9£416 GBP
MOH London£1,009 GBP

30 data points across 10 retailers

10 retailers£98 GBP to £1,009 GBP

A
Cheapest Retailer
-
£98 GBP
A
Retailer 2
-
£114 GBP
View
A
Retailer 3
-
£156 GBP
View
A
Retailer 4
-
£220 GBP
View
B+
Retailer 5
-
£362 GBP
View
B+
Retailer 6
-
£389 GBP
View
B+
Retailer 7
-
£411 GBP
View
B+
Retailer 8
-
£411 GBP
View
Retailer 9
-
£416 GBP
View
Price last confirmed 25 days ago
Most Expensive
B
MOH London
LG813649516 · Nov 5
£1,009 GBP
View
9 more retailers have this diamond
Prices start from £98 GBPSave up to £911 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
1.00ct Radiant
£98 GBP