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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 €252 EUR
$282 USD
As of October 30, 2026
Save €2,782 EUR (92%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €3,034 EUR 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 €252 to €3,034, a €2,782 spread on the same certified stone. Brilliant Earth lists it at €3,034. 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: €3,034 EUR|Low: €252 EUR|High: €4,466 EUR|Avg: €1,206 EUR|-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€252 EUR
Retailer 6€293 EUR
Retailer 9€315 EUR
Retailer 15€472 EUR
Retailer 3€515 EUR
Retailer 10€515 EUR
Retailer 2€572 EUR
Retailer 13€805 EUR
Retailer 8€866 EUR
Retailer 17€960 EUR
Retailer 5€987 EUR
Retailer 4€1,110 EUR
Retailer 12€1,391 EUR
Retailer 11€1,606 EUR
Retailer 16€2,238 EUR
Retailer 7€2,600 EUR
Brilliant Earth€3,034 EUR

37 data points across 17 retailers

17 retailers€252 EUR to €3,034 EUR

A
Cheapest Retailer
-
€252 EUR
$282 USD
A
Retailer 2
-
€293 EUR
$327 USD
View
A
Retailer 3
-
€315 EUR
$352 USD
View
Final sale: no returns
A
Retailer 4
-
€472 EUR
$527 USD
View
A
Retailer 5
-
€515 EUR
$575 USD
View
A
Retailer 6
-
€515 EUR
$575 USD
View
A
Retailer 7
-
€572 EUR
View
A
Retailer 8
-
€805 EUR
A$1,383 AUD
View
A
Retailer 9
-
€866 EUR
$968 USD
View
B+
Retailer 10
-
€960 EUR
$1,073 USD
View
A
Retailer 11
-
€987 EUR
$1,102 USD
View
B+
Retailer 12
-
€1,110 EUR
$1,240 USD
View
B+
Retailer 13
-
€1,391 EUR
£1,224 GBP
View
B+
Retailer 14
-
€1,606 EUR
A$2,761 AUD
View
B
Retailer 15
-
€2,238 EUR
$2,500 USD
View
B
Retailer 16
-
€2,600 EUR
$2,905 USD
View
Most Expensive
B
Brilliant Earth
17496203Y · Oct 31
€3,034 EUR
$3,390 USD
View
16 more retailers have this diamond
Prices start from €252 EURSave up to €2,782 EUR

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
€252 EUR