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Radiant|Lab Grown|IGI

1.68ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG744514676

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

Certificate IGI LG744514676

Diamond specifications and retailer prices

From $394 CAD
$282 USD
As of October 30, 2026
Save $4,342 CAD (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,735 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.68ct lab-grown radiant diamond

This 1.68ct 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 LG744514676 or 744514676. Listed at 17 retailers as of October 30, 2026, with prices from $394 to $4,735, a $4,342 spread on the same certified stone. Brilliant Earth lists it at $4,735. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.68
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744514676
Dimensions8.23 × 5.73 × 4.13 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
8.23 mm5.73 mm1.68 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744514676
Side View
Table 66.0%Crown 45.7°Girdle: ThickPavilion 37.3°Culet: NoneDepth 72.1%

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: $4,735 CAD|Low: $351 CAD|High: $6,971 CAD|Avg: $2,006 CAD|-32.1%
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 12$394 CAD
Retailer 5$457 CAD
Retailer 9$492 CAD
Retailer 13$736 CAD
Retailer 16$803 CAD
Retailer 17$810 CAD
Retailer 7$892 CAD
Retailer 11$1,256 CAD
Retailer 8$1,352 CAD
Retailer 15$1,499 CAD
Retailer 4$1,540 CAD
Retailer 3$1,732 CAD
Retailer 10$2,171 CAD
Retailer 2$2,507 CAD
Retailer 14$3,492 CAD
Retailer 6$4,058 CAD
Brilliant Earth$4,735 CAD

36 data points across 17 retailers

17 retailers$394 CAD to $4,735 CAD

A
Cheapest Retailer
-
$394 CAD
$282 USD
A
Retailer 2
-
$457 CAD
$327 USD
View
A
Retailer 3
-
$492 CAD
$352 USD
View
Final sale: no returns
A
Retailer 4
-
$736 CAD
$527 USD
View
A
Retailer 5
-
$803 CAD
$575 USD
View
A
Retailer 6
-
$810 CAD
$580 USD
View
Retailer 7
-
$892 CAD
€608 EUR
View
Price last confirmed 7 days ago
A
Retailer 8
-
$1,256 CAD
A$1,383 AUD
View
A
Retailer 9
-
$1,352 CAD
$968 USD
View
B+
Retailer 10
-
$1,499 CAD
$1,073 USD
View
A
Retailer 11
-
$1,540 CAD
$1,102 USD
View
B+
Retailer 12
-
$1,732 CAD
$1,240 USD
View
B+
Retailer 13
-
$2,171 CAD
£1,224 GBP
View
B+
Retailer 14
-
$2,507 CAD
A$2,761 AUD
View
B
Retailer 15
-
$3,492 CAD
$2,500 USD
View
B
Retailer 16
-
$4,058 CAD
$2,905 USD
View
Most Expensive
B
Brilliant Earth
17496203Y · Oct 30
$4,735 CAD
$3,390 USD
View
16 more retailers have this diamond
Prices start from $394 CADSave up to $4,342 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
1.68ct Radiant
$394 CAD