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Radiant|Lab Grown|IGI

1.08ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG844655620

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

Certificate IGI LG844655620

Diamond specifications and retailer prices

From £98 GBP
$131 USD
As of November 1, 2026
Save £128 GBP (57%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £226 GBP at 77 Diamonds · As of October 27, 2026
View at 77 Diamonds

About this 1.08ct lab-grown radiant diamond

This 1.08ct lab-grown radiant sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG844655620 or 844655620. Listed at 2 retailers as of October 27, 2026, with prices from £98 to £226, a £128 spread on the same certified stone. 77 Diamonds lists it at £226. 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

1.08
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.8°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG844655620
Dimensions7.23 × 4.98 × 3.39 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.23 mm4.98 mm1.08 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG844655620
Side View
Table 65.0%Crown 46.8°Girdle: MediumPavilion 34.4°Culet: NoneDepth 68.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £226 GBP|Low: £98 GBP|High: £226 GBP|Avg: £187 GBP|+13.3%
77 Diamonds
Retailer 2
October 27, 2026
Retailer 2£98 GBP
77 Diamonds£226 GBP

3 data points across 2 retailers

2 retailers£98 GBP to £226 GBP

A
Cheapest Retailer
-
£98 GBP
$131 USD
Final sale: no returns
Most Expensive
B+
77 Diamonds
RADTVSYWXFVHGZ · Oct 27
£226 GBP
View
1 more retailer has this diamond
Prices start from £98 GBPSave up to £128 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
1.08ct Radiant
£98 GBP