Radiant|Lab Grown|IGI

1.45ct D FL Radiant Lab Grown Diamond

VG • D/FL • IGI LG846663227

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

Certificate IGI LG846663227

Diamond specifications and retailer prices

From $554 AUD
£306 GBP
As of October 30, 2026
Save $4,286 AUD (89%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $4,840 AUD at Brilliant Earth · As of October 30, 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG846663227 or 846663227. Listed at 7 retailers as of October 30, 2026, with prices from $554 to $4,840, a $4,286 spread on the same certified stone. Brilliant Earth lists it at $4,840. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.45
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.5°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846663227
Dimensions8.24 × 5.55 × 3.84 mm
L/W Ratio1.48
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
8.24 mm5.55 mm1.45 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846663227
Side View
Table 65.0%Crown 39.5°Girdle: MediumPavilion 36.8°Culet: NoneDepth 69.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $4,840 AUD|Low: $554 AUD|High: $4,840 AUD|Avg: $1,666 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 4$554 AUD
Retailer 3$876 AUD
Retailer 7$918 AUD
Retailer 2$1,570 AUD
Retailer 6$1,993 AUD
Retailer 5$2,792 AUD
Brilliant Earth$4,840 AUD

7 data points across 7 retailers

7 retailers$554 AUD to $4,840 AUD

A
Cheapest Retailer
-
$554 AUD
£306 GBP
A
Retailer 2
-
$876 AUD
$615 USD
View
A
Retailer 3
-
$918 AUD
$645 USD
View
B+
Retailer 4
-
$1,570 AUD
$1,103 USD
View
B
Retailer 5
-
$1,993 AUD
$1,400 USD
View
B
Retailer 6
-
$2,792 AUD
£1,544 GBP
View
Most Expensive
B
Brilliant Earth
22305612A · Oct 30
$4,840 AUD
$3,400 USD
View
6 more retailers have this diamond
Prices start from $554 AUDSave up to $4,286 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
$554 AUD