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Radiant|Lab Grown|IGI

1.51ct E IF Radiant Lab Grown Diamond

EX • E/IF • IGI LG605337352

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

Certificate IGI LG605337352

Diamond specifications and retailer prices

From $413 AUD
$290 USD
As of November 2, 2026
Save $3,388 AUD (89%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,801 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.51ct lab-grown radiant diamond

This 1.51ct 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 LG605337352 or 605337352. Listed at 24 retailers as of October 31, 2026, with prices from $413 to $3,801, a $3,388 spread on the same certified stone. Brilliant Earth lists it at $3,801. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.9°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605337352
Dimensions8.05 × 5.77 × 3.84 mm
L/W Ratio1.40
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
8.05 mm5.77 mm1.51 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605337352
Side View
Table 67.0%Crown 46.9°Girdle: MediumPavilion 36.3°Culet: NoneDepth 66.6%

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: Nov 2
Current: $3,801 AUD|Low: $393 AUD|High: $4,328 AUD|Avg: $1,398 AUD|-9.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 16
Retailer 17
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Retailer 22
November 2, 2026
Retailer 7$413 AUD
Retailer 4$478 AUD
Retailer 17$485 AUD
Retailer 10$512 AUD
Retailer 14$512 AUD
Retailer 3$733 AUD
Retailer 11$841 AUD
Retailer 9$883 AUD
Retailer 16$883 AUD
Retailer 13$906 AUD
Retailer 19$948 AUD
Retailer 22$1,191 AUD
Retailer 2$1,398 AUD
Retailer 6$1,441 AUD
Retailer 8$1,646 AUD
Retailer 15$1,715 AUD
Retailer 20$1,969 AUD
Retailer 21$2,036 AUD
Retailer 18$2,052 AUD
Retailer 12$2,108 AUD
Retailer 5$3,246 AUD
Brilliant Earth$3,801 AUD

36 data points across 22 retailers

24 retailers$413 AUD to $3,801 AUD

A
Cheapest Retailer
-
$413 AUD
$290 USD
A
Retailer 2
-
$478 AUD
$336 USD
View
A
Retailer 3
-
$485 AUD
$341 USD
View
Final sale: no returns
Retailer 4
-
$512 AUD
$360 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$512 AUD
$360 USD
View
A
Retailer 6
-
$733 AUD
$515 USD
View
A
Retailer 7
-
$841 AUD
$591 USD
View
A
Retailer 8
-
$883 AUD
$620 USD
View
A
Retailer 9
-
$883 AUD
ZAR 10,018 ZAR
View
A
Retailer 10
-
$906 AUD
£501 GBP
View
A
Retailer 11
-
$948 AUD
€634 EUR
View
A
Retailer 12
-
$1,191 AUD
View
B+
Retailer 13
-
$1,398 AUD
$982 USD
View
B+
Retailer 14
-
$1,441 AUD
$1,012 USD
View
B+
Retailer 15
-
$1,646 AUD
$1,156 USD
View
B+
Retailer 16
-
$1,686 AUD
$1,184 USD
View
B+
Retailer 17
-
$1,715 AUD
$1,205 USD
View
B+
Retailer 18
-
$1,882 AUD
$1,322 USD
View
B+
Retailer 19
-
$1,969 AUD
$1,383 USD
View
B+
Retailer 20
-
$2,030 AUD
£1,123 GBP
View
B+
Retailer 21
-
$2,036 AUD
View
B+
Retailer 22
-
$2,052 AUD
£1,135 GBP
View
B+
Retailer 23
-
$2,108 AUD
$1,481 USD
View
Most Expensive
B
Brilliant Earth
14717190A · Oct 31
$3,801 AUD
$2,670 USD
View
23 more retailers have this diamond
Prices start from $413 AUDSave up to $3,388 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
1.51ct Radiant
$413 AUD