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Radiant|Lab Grown|IGI

1.45ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG790606540

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

Certificate IGI LG790606540

Diamond specifications and retailer prices

From $374 AUD
$263 USD
As of October 30, 2026
Save $3,512 AUD (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,769 AUD at Brilliant Earth · As of September 19, 2026
View at Brilliant Earth

About this 1.45ct lab-grown radiant diamond

This 1.45ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790606540 or 790606540. Listed at 13 retailers as of October 30, 2026, with a 938% 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

1.45
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790606540
Dimensions7.80 × 5.64 × 3.87 mm
L/W Ratio1.38
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
7.80 mm5.64 mm1.45 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790606540
Side View
Table 60.0%Crown 39.8°Girdle: MediumPavilion 36.5°Culet: NoneDepth 68.6%

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: $3,886 AUD|Low: $374 AUD|High: $4,769 AUD|Avg: $2,366 AUD|-18.5%
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
October 30, 2026
Retailer 10$374 AUD
Retailer 15$434 AUD
Retailer 9$733 AUD
Retailer 13$774 AUD
Retailer 12$1,428 AUD
Retailer 14$1,650 AUD
Retailer 3$1,662 AUD
Retailer 7$1,723 AUD
Retailer 8$1,730 AUD
Retailer 4$1,737 AUD
Retailer 2$2,067 AUD
Retailer 5$2,614 AUD
Retailer 11$3,331 AUD
Retailer 6$3,652 AUD
Brilliant Earth$3,886 AUD
Retailer 16$4,257 AUD

28 data points across 16 retailers

13 retailers$374 AUD to $3,886 AUD

A
Cheapest Retailer
-
$374 AUD
$263 USD
A
Retailer 2
-
$434 AUD
$305 USD
View
A
Retailer 3
-
$733 AUD
$515 USD
View
A
Retailer 4
-
$774 AUD
$544 USD
View
B+
Retailer 5
-
$1,428 AUD
$1,003 USD
View
Retailer 6
-
$1,557 AUD
$1,094 USD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$1,650 AUD
$1,159 USD
View
B+
Retailer 8
-
$1,662 AUD
$1,168 USD
View
B+
Retailer 9
-
$2,067 AUD
£1,143 GBP
View
B
Retailer 10
-
$3,331 AUD
$2,340 USD
View
B
Retailer 11
-
$3,886 AUD
$2,730 USD
View
Retailer 12
-
$4,257 AUD
$2,990 USD
View
Price last confirmed 12 days ago
Most Expensive
Brilliant Earth
20712956Y · Sep 19
$4,769 AUD
$3,350 USD
View
Price last confirmed 41 days ago
12 more retailers have this diamond
Prices start from $374 AUDSave up to $3,512 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
1.45ct Radiant
$374 AUD