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Radiant|Lab Grown|IGI

1.09ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG566310953

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

Certificate IGI LG566310953

Diamond specifications and retailer prices

From £104 GBP
$140 USD
As of November 2, 2026
Save £902 GBP (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,006 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.09ct lab-grown radiant diamond

This 1.09ct 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 LG566310953 or 566310953. Listed at 15 retailers as of November 2, 2026, with prices from £104 to £1,006, a £902 spread on the same certified stone. Do Amore Diamonds lists it at £1,006. 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

1.09
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG566310953
Dimensions7.48 × 4.99 × 3.41 mm
L/W Ratio1.50
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
7.48 mm4.99 mm1.09 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG566310953
Side View
Table 66.0%Crown 42.6°Girdle: MediumPavilion 35°Culet: NoneDepth 68.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: £186 GBP|Low: £101 GBP|High: £678 GBP|Avg: £266 GBP|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 10£104 GBP
Retailer 4£117 GBP
Retailer 2£121 GBP
Retailer 3£130 GBP
Retailer 11£130 GBP
Retailer 1£186 GBP
Retailer 13£241 GBP
Retailer 6£251 GBP
Retailer 7£272 GBP
Retailer 5£371 GBP
Retailer 9£441 GBP
Retailer 12£461 GBP
Retailer 8£674 GBP

45 data points across 13 retailers

15 retailers£104 GBP to £1,006 GBP

A
Cheapest Retailer
-
£104 GBP
$140 USD
A
Retailer 2
-
£117 GBP
$157 USD
View
Final sale: no returns
A
Retailer 3
-
£121 GBP
$163 USD
View
Retailer 4
-
£130 GBP
$174 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£130 GBP
$174 USD
View
A
Retailer 6
-
£186 GBP
View
A
Retailer 7
-
£196 GBP
$263 USD
View
B+
Retailer 8
-
£241 GBP
$324 USD
View
A
Retailer 9
-
£251 GBP
View
A
Retailer 10
-
£272 GBP
View
B+
Retailer 11
-
£371 GBP
$498 USD
View
B+
Retailer 12
-
£441 GBP
$592 USD
View
B
Retailer 13
-
£461 GBP
$618 USD
View
B
Retailer 14
-
£674 GBP
View
Most Expensive
B
Do Amore Diamonds
27-965C3C97B · Nov 2
£1,006 GBP
$1,350 USD
View
14 more retailers have this diamond
Prices start from £104 GBPSave up to £902 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
1.09ct Radiant
£104 GBP