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Radiant|Lab Grown|IGI

1.09ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG789604613

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

Certificate IGI LG789604613

Diamond specifications and retailer prices

From $308 AUD
$216 USD
As of November 1, 2026
Save $1,718 AUD (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,026 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG789604613 or 789604613. Listed at 21 retailers as of October 31, 2026, with prices from $308 to $2,026, a $1,718 spread on the same certified stone. Brilliant Earth lists it at $2,026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789604613
Dimensions7.28 × 5.03 × 3.43 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.28 mm5.03 mm1.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789604613
Side View
Table 65.0%Crown 44°Girdle: Slightly ThickPavilion 35.1°Culet: NoneDepth 68.2%

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: Nov 1
Current: $2,026 AUD|Low: $308 AUD|High: $2,625 AUD|Avg: $865 AUD|-22.8%
Brilliant Earth
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
Retailer 18
November 2, 2026
Retailer 5$308 AUD
Retailer 9$310 AUD
Retailer 18$362 AUD
Retailer 8$401 AUD
Retailer 10$401 AUD
Retailer 15$571 AUD
Retailer 12$589 AUD
Retailer 14$595 AUD
Retailer 11$621 AUD
Retailer 3$792 AUD
Retailer 16$819 AUD
Retailer 2$831 AUD
Retailer 17$908 AUD
Retailer 7$926 AUD
Retailer 4$1,172 AUD
Retailer 13$1,593 AUD
Retailer 6$1,670 AUD
Brilliant Earth$2,026 AUD

38 data points across 18 retailers

21 retailers$308 AUD to $2,026 AUD

A
Cheapest Retailer
-
$308 AUD
$216 USD
Final sale: no returns
Retailer 2
-
$310 AUD
$217 USD
View
Price last confirmed 31 days ago
Retailer 3
-
$362 AUD
£200 GBP
View
Price last confirmed 16 days ago
Retailer 4
-
$375 AUD
$263 USD
View
Price last confirmed 36 days ago
Retailer 5
-
$401 AUD
$281 USD
View
Price last confirmed 25 days ago
Retailer 6
-
$401 AUD
$281 USD
View
Price last confirmed 30 days ago
A
Retailer 7
-
$571 AUD
€381 EUR
View
A
Retailer 8
-
$589 AUD
ZAR 6,663 ZAR
View
A
Retailer 9
-
$595 AUD
$417 USD
View
A
Retailer 10
-
$621 AUD
£343 GBP
View
A
Retailer 11
-
$792 AUD
$555 USD
View
A
Retailer 12
-
$819 AUD
$574 USD
View
A
Retailer 13
-
$831 AUD
View
B+
Retailer 14
-
$908 AUD
$636 USD
View
A
Retailer 15
-
$926 AUD
SGD 877 SGD
View
B+
Retailer 16
-
$1,172 AUD
$822 USD
View
Retailer 17
-
$1,287 AUD
$902 USD
View
Price last confirmed 32 days ago
Retailer 18
-
$1,306 AUD
View
Price last confirmed 139 days ago
B+
Retailer 19
-
$1,593 AUD
£879 GBP
View
B
Retailer 20
-
$1,670 AUD
$1,170 USD
View
Most Expensive
B
Brilliant Earth
18991251A · Oct 31
$2,026 AUD
$1,420 USD
View
20 more retailers have this diamond
Prices start from $308 AUDSave up to $1,718 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
1.09ct Radiant
$308 AUD