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Radiant|Lab Grown|IGI

1.03ct G SI1 Radiant Lab Grown Diamond

G/SI1 • IGI LG607328438

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

Certificate IGI LG607328438

Diamond specifications and retailer prices

From £314 GBP
As of November 5, 2026
Save £49 GBP (13%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £362 GBP at MD Diamonds and Jewellers · As of November 5, 2026
View at MD Diamonds and Jewellers

About this 1.03ct lab-grown radiant diamond

This 1.03ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included) and certified by IGI LG607328438 or 607328438. Listed at 2 retailers as of November 5, 2026, with prices from £314 to £362, a £49 spread on the same certified stone. MD Diamonds and Jewellers lists it at £362. 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

1.03
Carat
G
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG607328438
Dimensions7.16 × 4.99 × 3.42 mm
L/W Ratio1.43
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
7.16 mm4.99 mm1.03 ctG / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG607328438
Side View
Table 66.0%Crown 42.2°Girdle: MediumPavilion 35.6°Culet: NoneDepth 68.5%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: £362 GBP|Low: £278 GBP|High: £362 GBP|Avg: £325 GBP
MD Diamonds and Jewellers
Retailer 2
December 31, 2025
Retailer 2£278 GBP
MD Diamonds and Jewellers£362 GBP

5 data points across 2 retailers

2 retailers£314 GBP to £362 GBP

B+
Cheapest Retailer
-
£314 GBP
Most Expensive
B
MD Diamonds and Jewellers
LG607328438 · Nov 5
£362 GBP
View
1 more retailer has this diamond
Prices start from £314 GBPSave up to £49 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+
1.03ct Radiant
£314 GBP