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Radiant|Lab Grown|IGI

1.45ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG840633311

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

Certificate IGI LG840633311

Diamond specifications and retailer prices

From $433 AUD
$304 USD
As of October 30, 2026
Save $3,525 AUD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,278 AUD at Rare Carat · As of October 18, 2026
View at Rare Carat

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 LG840633311 or 840633311. Listed at 22 retailers as of October 30, 2026, with a 814% 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 angle42.5°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840633311
Dimensions7.86 × 5.54 × 3.80 mm
L/W Ratio1.42
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
7.86 mm5.54 mm1.45 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840633311
Side View
Table 63.0%Crown 42.5°Girdle: Slightly ThickPavilion 34.9°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: $4,278 AUD|Low: $433 AUD|High: $4,655 AUD|Avg: $1,532 AUD|-0.3%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 30, 2026
Retailer 9$433 AUD
Retailer 21$503 AUD
Retailer 12$515 AUD
Retailer 8$537 AUD
Retailer 20$537 AUD
Retailer 13$570 AUD
Retailer 19$811 AUD
Retailer 3$878 AUD
Retailer 22$903 AUD
Retailer 18$923 AUD
Retailer 16$955 AUD
Retailer 10$991 AUD
Retailer 5$1,572 AUD
Retailer 4$1,651 AUD
Retailer 11$1,680 AUD
Retailer 7$1,727 AUD
Retailer 6$1,795 AUD
Retailer 15$1,970 AUD
Retailer 17$2,166 AUD
Retailer 14$3,835 AUD
Retailer 2$3,958 AUD
Rare Carat$4,278 AUD

23 data points across 22 retailers

22 retailers$433 AUD to $3,958 AUD

A
Cheapest Retailer
-
$433 AUD
$304 USD
A
Retailer 2
-
$503 AUD
$353 USD
View
A
Retailer 3
-
$515 AUD
$362 USD
View
Final sale: no returns
A
Retailer 4
-
$537 AUD
$377 USD
View
A
Retailer 5
-
$537 AUD
$377 USD
View
A
Retailer 6
-
$570 AUD
£315 GBP
View
A
Retailer 7
-
$811 AUD
$570 USD
View
A
Retailer 8
-
$878 AUD
$617 USD
View
A
Retailer 9
-
$903 AUD
$634 USD
View
A
Retailer 10
-
$923 AUD
ZAR 10,478 ZAR
View
A
Retailer 11
-
$955 AUD
£528 GBP
View
Retailer 12
-
$991 AUD
€663 EUR
View
Price last confirmed 7 days ago
B+
Retailer 13
-
$1,572 AUD
$1,104 USD
View
B+
Retailer 14
-
$1,651 AUD
$1,160 USD
View
B+
Retailer 15
-
$1,680 AUD
$1,180 USD
View
B+
Retailer 16
-
$1,727 AUD
$1,213 USD
View
B+
Retailer 17
-
$1,795 AUD
$1,261 USD
View
B+
Retailer 18
-
$1,970 AUD
SGD 1,870 SGD
View
B+
Retailer 19
-
$2,166 AUD
£1,198 GBP
View
B
Retailer 20
-
$3,835 AUD
$2,694 USD
View
B
Retailer 21
-
$3,958 AUD
$2,780 USD
View
Most Expensive
Rare Carat
JH-250266 · Oct 18
$4,278 AUD
$3,005 USD
View
Price last confirmed 12 days ago
21 more retailers have this diamond
Prices start from $433 AUDSave up to $3,525 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
$433 AUD