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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 $1,334 AUD
$937 USD
As of October 30, 2026
Save $4,426 AUD (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,760 AUD at Adiamor · As of November 2, 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 $1,334 to $5,760, a $4,426 spread on the same certified stone. Adiamor lists it at $5,760. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,760 AUD|Low: $1,334 AUD|High: $14,567 AUD|Avg: $4,973 AUD|-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$1,334 AUD
Retailer 5$1,452 AUD
Retailer 13$1,547 AUD
Retailer 14$1,801 AUD
Retailer 16$1,822 AUD
Retailer 10$1,842 AUD
Retailer 15$2,244 AUD
Retailer 11$2,459 AUD
Retailer 4$2,480 AUD
Retailer 12$3,337 AUD
Retailer 17$4,352 AUD
Retailer 2$5,250 AUD
Retailer 3$5,385 AUD
Adiamor$5,760 AUD
Retailer 8$10,933 AUD
Retailer 9$11,318 AUD
Retailer 7$14,567 AUD

6 data points across 17 retailers

15 retailers$1,334 AUD to $5,760 AUD

A
Cheapest Retailer
-
$1,334 AUD
$937 USD
A
Retailer 2
-
$1,452 AUD
$1,020 USD
View
A
Retailer 3
-
$1,547 AUD
$1,087 USD
View
A
Retailer 4
-
$1,801 AUD
$1,265 USD
View
A
Retailer 5
-
$1,822 AUD
HK$10,000 HKD
View
A
Retailer 6
-
$1,842 AUD
£1,019 GBP
View
A
Retailer 7
-
$2,244 AUD
$1,576 USD
View
B+
Retailer 8
-
$2,459 AUD
€1,645 EUR
View
B+
Retailer 9
-
$2,480 AUD
$1,742 USD
View
B+
Retailer 10
-
$3,337 AUD
$2,344 USD
View
B+
Retailer 11
-
$4,352 AUD
$3,057 USD
View
B
Retailer 12
-
$5,104 AUD
$3,585 USD
View
B
Retailer 13
-
$5,250 AUD
£2,904 GBP
View
B
Retailer 14
-
$5,385 AUD
$3,783 USD
View
Most Expensive
B
Adiamor
D-82832540 · Nov 2
$5,760 AUD
$4,046 USD
View
14 more retailers have this diamond
Prices start from $1,334 AUDSave up to $4,426 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
8.09ct Radiant
$1,334 AUD