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Radiant|Lab Grown|IGI

8.09ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG542212960

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

Certificate IGI LG542212960

Diamond specifications and retailer prices

From £699 GBP
$937 USD
As of October 30, 2026
Save £2,320 GBP (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,020 GBP at Adiamor · As of October 31, 2026
View at Adiamor

About this 8.09ct lab-grown radiant diamond

This 8.09ct lab-grown radiant sits in the over five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG542212960 or 542212960. Listed at 15 retailers as of October 30, 2026, with prices from £699 to £3,020, a £2,320 spread on the same certified stone. Adiamor lists it at £3,020. 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

8.09
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.6°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG542212960
Dimensions14.01 × 9.82 × 6.58 mm
L/W Ratio1.43
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
14.01 mm9.82 mm8.09 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG542212960
Side View
Table 65.0%Crown 44.6°Girdle: ThickPavilion 34.6°Culet: NoneDepth 67.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £3,020 GBP|Low: £699 GBP|High: £7,637 GBP|Avg: £2,607 GBP|-32.1%
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 6£699 GBP
Retailer 5£761 GBP
Retailer 13£811 GBP
Retailer 14£944 GBP
Retailer 16£955 GBP
Retailer 10£966 GBP
Retailer 15£1,176 GBP
Retailer 11£1,289 GBP
Retailer 4£1,300 GBP
Retailer 12£1,749 GBP
Retailer 17£2,282 GBP
Retailer 2£2,753 GBP
Retailer 3£2,823 GBP
Adiamor£3,020 GBP
Retailer 8£5,732 GBP
Retailer 9£5,933 GBP
Retailer 7£7,637 GBP

6 data points across 17 retailers

15 retailers£699 GBP to £3,020 GBP

A
Cheapest Retailer
-
£699 GBP
$937 USD
A
Retailer 2
-
£761 GBP
$1,020 USD
View
A
Retailer 3
-
£811 GBP
$1,087 USD
View
A
Retailer 4
-
£944 GBP
$1,265 USD
View
A
Retailer 5
-
£955 GBP
HK$10,000 HKD
View
A
Retailer 6
-
£966 GBP
View
A
Retailer 7
-
£1,176 GBP
$1,576 USD
View
B+
Retailer 8
-
£1,289 GBP
€1,645 EUR
View
B+
Retailer 9
-
£1,300 GBP
$1,742 USD
View
B+
Retailer 10
-
£1,749 GBP
$2,344 USD
View
B+
Retailer 11
-
£2,282 GBP
$3,057 USD
View
B
Retailer 12
-
£2,676 GBP
$3,585 USD
View
B
Retailer 13
-
£2,753 GBP
View
B
Retailer 14
-
£2,823 GBP
$3,783 USD
View
Most Expensive
B
Adiamor
D-82832540 · Oct 31
£3,020 GBP
$4,046 USD
View
14 more retailers have this diamond
Prices start from £699 GBPSave up to £2,320 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
8.09ct Radiant
£699 GBP