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Radiant|Lab Grown|IGI

1.59ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG657416404

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

Certificate IGI LG657416404

Diamond specifications and retailer prices

From $387 AUD
$272 USD
As of October 27, 2026
Save $4,561 AUD (92%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,948 AUD at Yadav Diamonds · As of October 29, 2026
View at Yadav Diamonds

About this 1.59ct lab-grown radiant diamond

This 1.59ct 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 LG657416404 or 657416404. Listed at 22 retailers as of October 27, 2026, with prices from $387 to $4,948, a $4,561 spread on the same certified stone. Yadav Diamonds lists it at $4,948. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.59
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.2°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657416404
Dimensions8.16 × 5.67 × 3.89 mm
L/W Ratio1.44
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
8.16 mm5.67 mm1.59 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657416404
Side View
Table 65.0%Crown 47.2°Girdle: Slightly ThickPavilion 34.1°Culet: NoneDepth 68.6%

Caratlytics Score

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A+
Exceptional
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 27
Current: $1,234 AUD|Low: $387 AUD|High: $4,398 AUD|Avg: $1,383 AUD|-3.0%
Retailer 1
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Retailer 19
October 28, 2026
Retailer 10$387 AUD
Retailer 4$433 AUD
Retailer 2$448 AUD
Retailer 8$480 AUD
Retailer 15$480 AUD
Retailer 19$641 AUD
Retailer 14$705 AUD
Retailer 12$910 AUD
Retailer 13$937 AUD
Retailer 18$964 AUD
Retailer 3$1,234 AUD
Retailer 1$1,234 AUD
Retailer 17$1,369 AUD
Retailer 7$1,702 AUD
Retailer 6$1,845 AUD
Retailer 9$1,936 AUD
Retailer 16$2,126 AUD
Retailer 5$3,430 AUD
Retailer 11$4,242 AUD

26 data points across 19 retailers

22 retailers$387 AUD to $4,948 AUD

A+
Cheapest Retailer
-
$387 AUD
$272 USD
A
Retailer 2
-
$433 AUD
$304 USD
View
Final sale: no returns
A
Retailer 3
-
$448 AUD
$315 USD
View
A
Retailer 4
-
$480 AUD
$337 USD
View
A
Retailer 5
-
$480 AUD
$337 USD
View
B+
Retailer 6
-
$641 AUD
$450 USD
View
A
Retailer 7
-
$705 AUD
$495 USD
View
A
Retailer 8
-
$910 AUD
ZAR 10,328 ZAR
View
A
Retailer 9
-
$937 AUD
£518 GBP
View
A
Retailer 10
-
$964 AUD
$677 USD
View
A
Retailer 11
-
$1,234 AUD
$867 USD
View
A
Retailer 12
-
$1,234 AUD
View
A
Retailer 13
-
$1,369 AUD
$962 USD
View
B+
Retailer 14
-
$1,702 AUD
$1,196 USD
View
B+
Retailer 15
-
$1,845 AUD
$1,296 USD
View
B+
Retailer 16
-
$1,936 AUD
$1,360 USD
View
B+
Retailer 17
-
$2,045 AUD
£1,131 GBP
View
B+
Retailer 18
-
$2,126 AUD
£1,176 GBP
View
B+
Retailer 19
-
$3,430 AUD
$2,410 USD
View
B
Retailer 20
-
$4,242 AUD
$2,980 USD
View
B
Retailer 21
-
$4,640 AUD
$3,260 USD
View
Most Expensive
B
Yadav Diamonds
13004489 · Oct 29
$4,948 AUD
$3,476 USD
View
21 more retailers have this diamond
Prices start from $387 AUDSave up to $4,561 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+
1.59ct Radiant
$387 AUD