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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 $391 CAD
$280 USD
As of October 30, 2026
Save $4,386 CAD (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,777 CAD at Brilliant Earth · As of October 30, 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 $391 to $4,777, a $4,386 spread on the same certified stone. Brilliant Earth lists it at $4,777. 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
Color
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: $4,777 CAD|Low: $349 CAD|High: $5,546 CAD|Avg: $1,929 CAD|-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 30, 2026
Retailer 11$391 CAD
Retailer 3$454 CAD
Retailer 9$489 CAD
Retailer 12$733 CAD
Retailer 15$800 CAD
Retailer 7$803 CAD
Retailer 5$887 CAD
Retailer 10$1,249 CAD
Retailer 8$1,337 CAD
Retailer 14$1,492 CAD
Retailer 17$1,533 CAD
Retailer 16$1,722 CAD
Retailer 6$2,205 CAD
Retailer 2$2,497 CAD
Retailer 13$3,478 CAD
Retailer 4$4,037 CAD
Brilliant Earth$4,777 CAD

31 data points across 17 retailers

17 retailers$391 CAD to $4,777 CAD

A
Cheapest Retailer
-
$391 CAD
$280 USD
A
Retailer 2
-
$454 CAD
$325 USD
View
A
Retailer 3
-
$489 CAD
$350 USD
View
Final sale: no returns
A
Retailer 4
-
$733 CAD
$525 USD
View
A
Retailer 5
-
$800 CAD
$573 USD
View
A
Retailer 6
-
$803 CAD
$575 USD
View
Retailer 7
-
$887 CAD
€605 EUR
View
Price last confirmed 7 days ago
A
Retailer 8
-
$1,249 CAD
A$1,376 AUD
View
A
Retailer 9
-
$1,337 CAD
$957 USD
View
A
Retailer 10
-
$1,492 CAD
$1,068 USD
View
A
Retailer 11
-
$1,533 CAD
$1,098 USD
View
B+
Retailer 12
-
$1,722 CAD
$1,233 USD
View
Retailer 13
-
$2,205 CAD
£1,243 GBP
View
Price last confirmed 12 days ago
B+
Retailer 14
-
$2,497 CAD
A$2,750 AUD
View
B
Retailer 15
-
$3,478 CAD
$2,490 USD
View
B
Retailer 16
-
$4,037 CAD
$2,890 USD
View
Most Expensive
B
Brilliant Earth
17388439Y · Oct 30
$4,777 CAD
$3,420 USD
View
16 more retailers have this diamond
Prices start from $391 CADSave up to $4,386 CAD

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
$391 CAD