Radiant|Lab Grown|IGI

1.09ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG635497403

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

Certificate IGI LG635497403

Diamond specifications and retailer prices

From $298 AUD
$209 USD
As of November 2, 2026
Save $1,443 AUD (83%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,662 AUD at Brilliant Earth · As of October 15, 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 LG635497403 or 635497403. Listed at 24 retailers as of November 1, 2026, with a 485% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle43°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635497403
Dimensions7.19 × 5.13 × 3.49 mm
L/W Ratio1.40
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
7.19 mm5.13 mm1.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635497403
Side View
Table 65.0%Crown 43°Girdle: MED-STKPavilion 34.7°Culet: NoneDepth 68.0%

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: Nov 2
Current: $2,662 AUD|Low: $286 AUD|High: $2,804 AUD|Avg: $920 AUD|+1.6%
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
Retailer 19
November 2, 2026
Retailer 6$298 AUD
Retailer 4$333 AUD
Retailer 9$345 AUD
Retailer 7$369 AUD
Retailer 10$369 AUD
Retailer 3$392 AUD
Retailer 17$498 AUD
Retailer 14$599 AUD
Retailer 12$637 AUD
Retailer 2$681 AUD
Retailer 11$816 AUD
Retailer 15$898 AUD
Retailer 18$902 AUD
Retailer 8$1,186 AUD
Retailer 16$1,333 AUD
Retailer 13$1,479 AUD
Retailer 19$1,723 AUD
Retailer 5$1,740 AUD
Brilliant Earth$2,662 AUD

39 data points across 19 retailers

24 retailers$298 AUD to $1,740 AUD

A
Cheapest Retailer
-
$298 AUD
$209 USD
A
Retailer 2
-
$333 AUD
$234 USD
View
Final sale: no returns
A
Retailer 3
-
$345 AUD
$242 USD
View
Retailer 4
-
$369 AUD
$259 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$369 AUD
$259 USD
View
Retailer 6
-
$392 AUD
£217 GBP
View
Price last confirmed 16 days ago
A
Retailer 7
-
$498 AUD
$350 USD
View
A
Retailer 8
-
$599 AUD
€401 EUR
View
A
Retailer 9
-
$637 AUD
ZAR 7,229 ZAR
View
A
Retailer 10
-
$681 AUD
£377 GBP
View
A
Retailer 11
-
$751 AUD
$528 USD
View
A
Retailer 12
-
$816 AUD
$573 USD
View
A
Retailer 13
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$898 AUD
$631 USD
View
A
Retailer 14
-
$902 AUD
View
A
Retailer 15
-
$915 AUD
$643 USD
View
B+
Retailer 16
-
$1,186 AUD
$833 USD
View
B+
Retailer 17
-
$1,260 AUD
$885 USD
View
B+
Retailer 18
-
$1,262 AUD
$886 USD
View
B+
Retailer 19
-
$1,333 AUD
View
B+
Retailer 20
-
$1,342 AUD
£742 GBP
View
B+
Retailer 21
-
$1,479 AUD
£818 GBP
View
Retailer 22
-
$1,723 AUD
$1,210 USD
View
Price last confirmed 14 days ago
B
Retailer 23
-
$1,740 AUD
$1,222 USD
View
Most Expensive
Brilliant Earth
10800488A · Oct 15
$2,662 AUD
$1,870 USD
View
Price last confirmed 17 days ago
23 more retailers have this diamond
Prices start from $298 AUDSave up to $1,443 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
$298 AUD