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Radiant|Lab Grown|IGI

1.50ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG770617468

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

Certificate IGI LG770617468

Diamond specifications and retailer prices

From $366 AUD
$257 USD
As of October 30, 2026
Save $2,951 AUD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,317 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG770617468 or 770617468. Listed at 18 retailers as of October 30, 2026, with prices from $366 to $3,317, a $2,951 spread on the same certified stone. Brilliant Earth lists it at $3,317. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.9°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770617468
Dimensions7.94 × 5.60 × 3.85 mm
L/W Ratio1.42
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
7.94 mm5.60 mm1.50 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770617468
Side View
Table 64.0%Crown 47.9°Girdle: MED-STKPavilion 36.3°Culet: NoneDepth 68.7%

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: $3,317 AUD|Low: $363 AUD|High: $3,986 AUD|Avg: $1,432 AUD|-16.8%
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 1, 2026
Retailer 17$366 AUD
Retailer 6$410 AUD
Retailer 16$424 AUD
Retailer 2$516 AUD
Retailer 5$581 AUD
Retailer 3$631 AUD
Retailer 12$634 AUD
Retailer 11$818 AUD
Retailer 4$827 AUD
Retailer 15$1,165 AUD
Retailer 9$1,271 AUD
Retailer 7$1,507 AUD
Retailer 14$1,612 AUD
Retailer 10$1,741 AUD
Retailer 13$2,020 AUD
Retailer 8$3,054 AUD
Retailer 18$3,246 AUD
Brilliant Earth$3,317 AUD

33 data points across 18 retailers

18 retailers$366 AUD to $3,317 AUD

A
Cheapest Retailer
-
$366 AUD
$257 USD
A
Retailer 2
-
$410 AUD
$288 USD
View
Final sale: no returns
A
Retailer 3
-
$424 AUD
$298 USD
View
A
Retailer 4
-
$516 AUD
£285 GBP
View
A
Retailer 5
-
$581 AUD
$408 USD
View
B+
Retailer 6
-
$631 AUD
$443 USD
View
A
Retailer 7
-
$634 AUD
$445 USD
View
A
Retailer 8
-
$818 AUD
€547 EUR
View
A
Retailer 9
-
$827 AUD
$581 USD
View
A
Retailer 10
-
$1,165 AUD
View
A
Retailer 11
-
$1,271 AUD
$893 USD
View
A
Retailer 12
-
$1,507 AUD
$1,058 USD
View
B+
Retailer 13
-
$1,612 AUD
$1,132 USD
View
B+
Retailer 14
-
$1,741 AUD
$1,223 USD
View
B+
Retailer 15
-
$2,020 AUD
£1,117 GBP
View
Retailer 16
-
$3,054 AUD
$2,145 USD
View
Price last confirmed 12 days ago
B
Retailer 17
-
$3,246 AUD
$2,280 USD
View
Most Expensive
B
Brilliant Earth
21400238Y · Oct 31
$3,317 AUD
$2,330 USD
View
17 more retailers have this diamond
Prices start from $366 AUDSave up to $2,951 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
1.50ct Radiant
$366 AUD