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Radiant|Lab Grown|IGI

1.06ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG601308728

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

Certificate IGI LG601308728

Diamond specifications and retailer prices

From £282 GBP
$378 USD
As of November 1, 2026
Save £102 GBP (27%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £384 GBP at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1.06ct lab-grown radiant diamond

This 1.06ct 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 LG601308728 or 601308728. Listed at 3 retailers as of October 31, 2026, with prices from £282 to £384, a £102 spread on the same certified stone. Diamond Quarter lists it at £384. 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

1.06
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG601308728
Dimensions7.30 × 4.90 × 3.34 mm
L/W Ratio1.49
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
7.30 mm4.90 mm1.06 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG601308728
Side View
Table 62.0%Crown 43°Girdle: Slightly ThickPavilion 34.2°Culet: NoneDepth 68.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £384 GBP|Low: £282 GBP|High: £384 GBP|Avg: £334 GBP
Diamond Quarter
Retailer 2
Retailer 3
September 26, 2026
Retailer 2£282 GBP
Retailer 3£361 GBP
Diamond Quarter£384 GBP

2 data points across 3 retailers

3 retailers£282 GBP to £384 GBP

A
Cheapest Retailer
-
£282 GBP
$378 USD
B+
Retailer 2
-
£361 GBP
View
Most Expensive
B
Diamond Quarter
1.06SI1FLG28EC17N · Oct 31
£384 GBP
View
2 more retailers have this diamond
Prices start from £282 GBPSave up to £102 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
1.06ct Radiant
£282 GBP