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Radiant|Lab Grown|IGI

1.62ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG843604897

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

Certificate IGI LG843604897

Diamond specifications and retailer prices

From $389 AUD
$273 USD
As of October 30, 2026
Save $4,338 AUD (92%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $4,726 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.62ct lab-grown radiant diamond

This 1.62ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG843604897 or 843604897. Listed at 18 retailers as of October 30, 2026, with prices from $389 to $4,726, a $4,338 spread on the same certified stone. Brilliant Earth lists it at $4,726. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.62
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843604897
Dimensions8.08 × 5.83 × 4.00 mm
L/W Ratio1.39
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
8.08 mm5.83 mm1.62 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843604897
Side View
Table 64.0%Crown 45.7°Girdle: Slightly ThickPavilion 35°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: $4,726 AUD|Low: $389 AUD|High: $5,339 AUD|Avg: $1,897 AUD|-11.5%
Brilliant Earth
Retailer 2
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Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 19
November 1, 2026
Retailer 16$389 AUD
Retailer 6$450 AUD
Retailer 2$562 AUD
Retailer 17$732 AUD
Retailer 3$796 AUD
Retailer 15$797 AUD
Retailer 12$883 AUD
Retailer 14$1,238 AUD
Retailer 8$1,287 AUD
Retailer 19$1,479 AUD
Retailer 5$1,529 AUD
Retailer 4$1,708 AUD
Retailer 11$2,009 AUD
Retailer 13$2,141 AUD
Retailer 10$2,397 AUD
Retailer 18$3,445 AUD
Retailer 9$3,986 AUD
Retailer 7$4,348 AUD
Brilliant Earth$4,726 AUD

19 data points across 19 retailers

18 retailers$389 AUD to $4,726 AUD

A
Cheapest Retailer
-
$389 AUD
$273 USD
A
Retailer 2
-
$450 AUD
$316 USD
View
A
Retailer 3
-
$562 AUD
£311 GBP
View
A
Retailer 4
-
$732 AUD
$514 USD
View
A
Retailer 5
-
$796 AUD
$559 USD
View
A
Retailer 6
-
$797 AUD
$560 USD
View
A
Retailer 7
-
$883 AUD
€591 EUR
View
A
Retailer 8
-
$1,238 AUD
View
A
Retailer 9
-
$1,287 AUD
$904 USD
View
A
Retailer 10
-
$1,479 AUD
$1,039 USD
View
A
Retailer 11
-
$1,529 AUD
$1,074 USD
View
B+
Retailer 12
-
$1,708 AUD
$1,200 USD
View
Retailer 13
-
$2,009 AUD
$1,411 USD
View
Price last confirmed 16 days ago
B+
Retailer 14
-
$2,141 AUD
£1,184 GBP
View
B
Retailer 15
-
$3,445 AUD
$2,420 USD
View
B
Retailer 16
-
$3,986 AUD
$2,800 USD
View
B
Retailer 17
-
$4,348 AUD
$3,054 USD
View
Most Expensive
B
Brilliant Earth
22166110Y · Oct 31
$4,726 AUD
$3,320 USD
View
17 more retailers have this diamond
Prices start from $389 AUDSave up to $4,338 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
1.62ct Radiant
$389 AUD