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Radiant|Lab Grown|IGI

1.13ct G SI1 Radiant Lab Grown Diamond

G/SI1 • IGI LG639417795

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

Certificate IGI LG639417795

Diamond specifications and retailer prices

From £288 GBP
As of November 5, 2026
Save £56 GBP (16%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £343 GBP at MD Diamonds and Jewellers · As of November 5, 2026
View at MD Diamonds and Jewellers

About this 1.13ct lab-grown radiant diamond

This 1.13ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included) and certified by IGI LG639417795 or 639417795. Listed at 2 retailers as of November 5, 2026, with prices from £288 to £343, a £56 spread on the same certified stone. MD Diamonds and Jewellers lists it at £343. 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

1.13
Carat
G
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.2°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639417795
Dimensions7.50 × 5.15 × 3.36 mm
L/W Ratio1.46
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.50 mm5.15 mm1.13 ctG / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639417795
Side View
Table 68.0%Crown 45.2°Girdle: MediumPavilion 34.4°Culet: NoneDepth 65.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: £343 GBP|Low: £343 GBP|High: £343 GBP|Avg: £343 GBP
December 30, 2025
MD Diamonds and Jewellers£343 GBP

3 data points across 1 retailer

2 retailers£288 GBP to £343 GBP

B+
Cheapest Retailer
-
£288 GBP
Most Expensive
B
MD Diamonds and Jewellers
LG639417795 · Nov 5
£343 GBP
View
1 more retailer has this diamond
Prices start from £288 GBPSave up to £56 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+
1.13ct Radiant
£288 GBP