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Radiant|Lab Grown|IGI

1.35ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG728540141

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

Certificate IGI LG728540141

Diamond specifications and retailer prices

From $431 AUD
$303 USD
As of October 30, 2026
Save $2,800 AUD (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,232 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.35ct lab-grown radiant diamond

This 1.35ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG728540141 or 728540141. Listed at 22 retailers as of October 30, 2026, with prices from $431 to $3,232, a $2,800 spread on the same certified stone. Brilliant Earth lists it at $3,232. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.35
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728540141
Dimensions7.81 × 5.46 × 3.65 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.81 mm5.46 mm1.35 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728540141
Side View
Table 66.0%Crown 44.5°Girdle: Slightly ThickPavilion 34.9°Culet: NoneDepth 66.8%

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: $3,232 AUD|Low: $414 AUD|High: $3,232 AUD|Avg: $1,227 AUD|+1.3%
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
November 1, 2026
Retailer 3$431 AUD
Retailer 7$483 AUD
Retailer 4$535 AUD
Retailer 15$719 AUD
Retailer 12$755 AUD
Retailer 6$894 AUD
Retailer 9$906 AUD
Retailer 11$919 AUD
Retailer 8$951 AUD
Retailer 10$1,306 AUD
Retailer 14$1,644 AUD
Retailer 5$1,741 AUD
Retailer 2$2,144 AUD
Retailer 13$2,648 AUD
Brilliant Earth$3,232 AUD

45 data points across 15 retailers

22 retailers$431 AUD to $3,232 AUD

A
Cheapest Retailer
-
$431 AUD
$303 USD
A
Retailer 2
-
$483 AUD
$339 USD
View
Final sale: no returns
A
Retailer 3
-
$501 AUD
$352 USD
View
Retailer 4
-
$535 AUD
$376 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$535 AUD
$376 USD
View
A
Retailer 6
-
$719 AUD
$505 USD
View
A
Retailer 7
-
$755 AUD
$530 USD
View
A
Retailer 8
-
$894 AUD
$628 USD
View
A
Retailer 9
-
$906 AUD
€606 EUR
View
A
Retailer 10
-
$919 AUD
ZAR 10,434 ZAR
View
A
Retailer 11
-
$951 AUD
£526 GBP
View
B+
Retailer 12
-
$1,306 AUD
View
B+
Retailer 13
-
$1,384 AUD
$972 USD
View
B+
Retailer 14
-
$1,436 AUD
$1,009 USD
View
B+
Retailer 15
-
$1,644 AUD
$1,155 USD
View
B+
Retailer 16
-
$1,720 AUD
$1,208 USD
View
Retailer 17
-
$1,741 AUD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
$1,787 AUD
$1,256 USD
View
B+
Retailer 19
-
$2,144 AUD
£1,186 GBP
View
B
Retailer 20
-
$2,168 AUD
$1,523 USD
View
B
Retailer 21
-
$2,648 AUD
$1,860 USD
View
Most Expensive
B
Brilliant Earth
15548548A · Oct 31
$3,232 AUD
$2,270 USD
View
21 more retailers have this diamond
Prices start from $431 AUDSave up to $2,800 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
1.35ct Radiant
$431 AUD