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Radiant|Lab Grown|IGI

8.19ct H SI1 Radiant Lab Grown Diamond

ID • H/SI1 • IGI LG605304871

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

Certificate IGI LG605304871

Diamond specifications and retailer prices

From £671 GBP
$899 USD
As of October 30, 2026
Save £5,285 GBP (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £5,956 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 8.19ct lab-grown radiant diamond

This 8.19ct 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 LG605304871 or 605304871. Listed at 10 retailers as of October 30, 2026, with prices from £671 to £5,956, a £5,285 spread on the same certified stone. Do Amore Diamonds lists it at £5,956. 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

8.19
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle32.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605304871
Dimensions14.46 × 9.82 × 6.59 mm
L/W Ratio1.47
Culet sizeNone
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
14.46 mm9.82 mm8.19 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605304871
Side View
Table 64.0%Crown 40.2°Girdle: MED-STKPavilion 32.7°Culet: NoneDepth 67.1%

Caratlytics Score

How it works →
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: £5,956 GBP|Low: £671 GBP|High: £6,702 GBP|Avg: £2,482 GBP|-11.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7£671 GBP
Retailer 5£730 GBP
Retailer 9£1,249 GBP
Retailer 4£1,250 GBP
Retailer 3£1,565 GBP
Retailer 8£1,610 GBP
Retailer 6£1,731 GBP
Retailer 10£2,238 GBP
Retailer 2£2,914 GBP
Retailer 11£3,717 GBP
Do Amore Diamonds£5,956 GBP

18 data points across 11 retailers

10 retailers£671 GBP to £5,956 GBP

A
Cheapest Retailer
-
£671 GBP
$899 USD
A
Retailer 2
-
£730 GBP
$978 USD
View
B+
Retailer 3
-
£1,249 GBP
$1,673 USD
View
A
Retailer 4
-
£1,250 GBP
$1,675 USD
View
A
Retailer 5
-
£1,610 GBP
$2,157 USD
View
A
Retailer 6
-
£1,731 GBP
$2,320 USD
View
B+
Retailer 7
-
£2,238 GBP
$2,998 USD
View
B
Retailer 8
-
£2,914 GBP
View
B
Retailer 9
-
£3,717 GBP
$4,980 USD
View
Most Expensive
B
Do Amore Diamonds
27-63B1484E2 · Oct 31
£5,956 GBP
$7,980 USD
View
9 more retailers have this diamond
Prices start from £671 GBPSave up to £5,285 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
8.19ct Radiant
£671 GBP