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Radiant|Lab Grown|IGI

1.67ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG744514675

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

Certificate IGI LG744514675

Diamond specifications and retailer prices

From $399 AUD
$280 USD
As of October 30, 2026
Save $4,470 AUD (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,869 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.67ct lab-grown radiant diamond

This 1.67ct 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 LG744514675 or 744514675. Listed at 17 retailers as of October 30, 2026, with prices from $399 to $4,869, a $4,470 spread on the same certified stone. Brilliant Earth lists it at $4,869. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.67
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.2°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744514675
Dimensions8.76 × 5.91 × 3.72 mm
L/W Ratio1.48
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
8.76 mm5.91 mm1.67 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744514675
Side View
Table 65.0%Crown 39.2°Girdle: Slightly ThickPavilion 32°Culet: NoneDepth 62.9%

Caratlytics Score

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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: $4,869 AUD|Low: $399 AUD|High: $5,652 AUD|Avg: $1,846 AUD|-13.9%
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
October 31, 2026
Retailer 12$399 AUD
Retailer 4$463 AUD
Retailer 9$498 AUD
Retailer 13$747 AUD
Retailer 16$816 AUD
Retailer 7$819 AUD
Retailer 2$907 AUD
Retailer 11$1,273 AUD
Retailer 8$1,362 AUD
Retailer 15$1,520 AUD
Retailer 3$1,563 AUD
Retailer 17$1,755 AUD
Retailer 6$2,247 AUD
Retailer 10$2,545 AUD
Retailer 14$3,545 AUD
Retailer 5$4,114 AUD
Brilliant Earth$4,869 AUD

33 data points across 17 retailers

17 retailers$399 AUD to $4,869 AUD

A
Cheapest Retailer
-
$399 AUD
$280 USD
A
Retailer 2
-
$463 AUD
$325 USD
View
A
Retailer 3
-
$498 AUD
$350 USD
View
Final sale: no returns
A
Retailer 4
-
$747 AUD
$525 USD
View
A
Retailer 5
-
$816 AUD
$573 USD
View
A
Retailer 6
-
$819 AUD
$575 USD
View
A
Retailer 7
-
$907 AUD
€607 EUR
View
A
Retailer 8
-
$1,273 AUD
View
A
Retailer 9
-
$1,362 AUD
$957 USD
View
A
Retailer 10
-
$1,520 AUD
$1,068 USD
View
A
Retailer 11
-
$1,563 AUD
$1,098 USD
View
B+
Retailer 12
-
$1,755 AUD
$1,233 USD
View
Retailer 13
-
$2,247 AUD
£1,243 GBP
View
Price last confirmed 13 days ago
B+
Retailer 14
-
$2,545 AUD
View
B
Retailer 15
-
$3,545 AUD
$2,490 USD
View
B
Retailer 16
-
$4,114 AUD
$2,890 USD
View
Most Expensive
B
Brilliant Earth
17388439Y · Oct 31
$4,869 AUD
$3,420 USD
View
16 more retailers have this diamond
Prices start from $399 AUDSave up to $4,470 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
1.67ct Radiant
$399 AUD