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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 $1,280 AUD
$899 USD
As of November 2, 2026
Save $10,081 AUD (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $11,360 AUD at Do Amore Diamonds · As of November 2, 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 November 2, 2026, with prices from $1,280 to $11,360, a $10,081 spread on the same certified stone. Do Amore Diamonds lists it at $11,360. 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: Nov 2
Current: $11,360 AUD|Low: $1,280 AUD|High: $12,784 AUD|Avg: $4,735 AUD|-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$1,280 AUD
Retailer 5$1,392 AUD
Retailer 9$2,382 AUD
Retailer 4$2,385 AUD
Retailer 3$2,985 AUD
Retailer 8$3,071 AUD
Retailer 6$3,303 AUD
Retailer 10$4,268 AUD
Retailer 2$5,558 AUD
Retailer 11$7,090 AUD
Do Amore Diamonds$11,360 AUD

18 data points across 11 retailers

10 retailers$1,280 AUD to $11,360 AUD

A
Cheapest Retailer
-
$1,280 AUD
$899 USD
A
Retailer 2
-
$1,392 AUD
$978 USD
View
B+
Retailer 3
-
$2,382 AUD
$1,673 USD
View
A
Retailer 4
-
$2,385 AUD
$1,675 USD
View
A
Retailer 5
-
$3,071 AUD
$2,157 USD
View
A
Retailer 6
-
$3,303 AUD
$2,320 USD
View
B+
Retailer 7
-
$4,268 AUD
$2,998 USD
View
B
Retailer 8
-
$5,558 AUD
£3,074 GBP
View
B
Retailer 9
-
$7,090 AUD
$4,980 USD
View
Most Expensive
B
Do Amore Diamonds
27-63B1484E2 · Nov 2
$11,360 AUD
$7,980 USD
View
9 more retailers have this diamond
Prices start from $1,280 AUDSave up to $10,081 AUD

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
$1,280 AUD