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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 $361 SGD
$282 USD
As of October 30, 2026
Save $3,973 SGD (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,334 SGD at Brilliant Earth · As of October 31, 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 $361 to $4,334, a $3,973 spread on the same certified stone. Brilliant Earth lists it at $4,334. 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
Colour
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: $4,334 SGD|Low: $361 SGD|High: $6,379 SGD|Avg: $1,722 SGD|-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 31, 2026
Retailer 14$361 SGD
Retailer 6$418 SGD
Retailer 9$450 SGD
Retailer 15$674 SGD
Retailer 3$735 SGD
Retailer 10$735 SGD
Retailer 2$817 SGD
Retailer 13$1,149 SGD
Retailer 8$1,237 SGD
Retailer 17$1,372 SGD
Retailer 5$1,409 SGD
Retailer 4$1,585 SGD
Retailer 12$1,987 SGD
Retailer 11$2,294 SGD
Retailer 16$3,196 SGD
Retailer 7$3,714 SGD
Brilliant Earth$4,334 SGD

37 data points across 17 retailers

17 retailers$361 SGD to $4,334 SGD

A
Cheapest Retailer
-
$361 SGD
$282 USD
A
Retailer 2
-
$418 SGD
$327 USD
View
A
Retailer 3
-
$450 SGD
$352 USD
View
Final sale: no returns
A
Retailer 4
-
$674 SGD
$527 USD
View
A
Retailer 5
-
$735 SGD
$575 USD
View
A
Retailer 6
-
$735 SGD
$575 USD
View
A
Retailer 7
-
$817 SGD
€609 EUR
View
A
Retailer 8
-
$1,149 SGD
A$1,383 AUD
View
A
Retailer 9
-
$1,237 SGD
$968 USD
View
B+
Retailer 10
-
$1,372 SGD
$1,073 USD
View
A
Retailer 11
-
$1,409 SGD
$1,102 USD
View
B+
Retailer 12
-
$1,585 SGD
$1,240 USD
View
B+
Retailer 13
-
$1,987 SGD
£1,224 GBP
View
B+
Retailer 14
-
$2,294 SGD
A$2,761 AUD
View
B
Retailer 15
-
$3,196 SGD
$2,500 USD
View
B
Retailer 16
-
$3,714 SGD
$2,905 USD
View
Most Expensive
B
Brilliant Earth
17496203Y · Oct 31
$4,334 SGD
$3,390 USD
View
16 more retailers have this diamond
Prices start from $361 SGDSave up to $3,973 SGD

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
$361 SGD