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Radiant|Lab Grown|IGI

4.05ct E IF Radiant Lab Grown Diamond

GD • E/IF • IGI LG662415764

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

Certificate IGI LG662415764

Diamond specifications and retailer prices

From €1,489 EUR
$1,663 USD
As of October 30, 2026
Save €7,893 EUR (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €9,381 EUR at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 4.05ct lab-grown radiant diamond

This 4.05ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG662415764 or 662415764. Listed at 23 retailers as of October 29, 2026, with prices from €1,489 to €9,381, a €7,893 spread on the same certified stone. Diamond Quarter lists it at €9,381. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.05
Carat
E
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662415764
Dimensions11.58 × 7.80 × 5.18 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.58 mm7.80 mm4.05 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662415764
Side View
Table 66.0%Crown 38.5°Girdle: MED-STKPavilion 33.5°Culet: NoneDepth 66.4%

Caratlytics Score

How it works →
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: €2,977 EUR|Low: €1,472 EUR|High: €8,461 EUR|Avg: €3,615 EUR|-5.4%
Retailer 1
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 8€1,489 EUR
Retailer 5€1,619 EUR
Retailer 9€1,667 EUR
Retailer 15€1,727 EUR
Retailer 6€1,880 EUR
Retailer 18€1,938 EUR
Retailer 19€1,994 EUR
Retailer 12€2,447 EUR
Retailer 11€2,469 EUR
Retailer 1€2,977 EUR
Retailer 20€3,237 EUR
Retailer 4€3,574 EUR
Retailer 16€3,675 EUR
Retailer 13€3,818 EUR
Retailer 7€4,653 EUR
Retailer 3€4,744 EUR
Retailer 17€4,957 EUR
Retailer 2€5,003 EUR
Retailer 21€5,644 EUR
Retailer 10€6,060 EUR
Retailer 14€8,461 EUR

39 data points across 21 retailers

23 retailers€1,489 EUR to €9,381 EUR

A
Cheapest Retailer
-
€1,489 EUR
$1,663 USD
A
Retailer 2
-
€1,619 EUR
$1,809 USD
View
A
Retailer 3
-
€1,667 EUR
$1,862 USD
View
Final sale: no returns
A
Retailer 4
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€1,727 EUR
$1,929 USD
View
Retailer 5
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€1,779 EUR
$1,988 USD
View
Price last confirmed 18 days ago
A
Retailer 6
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€1,880 EUR
$2,100 USD
View
A
Retailer 7
-
€1,938 EUR
$2,165 USD
View
A
Retailer 8
-
€1,994 EUR
HK$17,400 HKD
View
A
Retailer 9
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€2,447 EUR
£2,153 GBP
View
A
Retailer 10
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€2,469 EUR
$2,758 USD
View
A
Retailer 11
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€2,977 EUR
$3,326 USD
View
A
Retailer 12
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€3,237 EUR
$3,616 USD
View
A
Retailer 13
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€3,574 EUR
£3,144 GBP
View
A
Retailer 14
-
€3,675 EUR
ZAR 66,331 ZAR
View
Retailer 15
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€3,818 EUR
A$6,562 AUD
View
Price last confirmed 8 days ago
A
Retailer 16
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€4,653 EUR
$5,198 USD
View
B+
Retailer 17
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€4,744 EUR
$5,300 USD
View
A
Retailer 18
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€4,957 EUR
£4,361 GBP
View
B+
Retailer 19
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€5,003 EUR
$5,589 USD
View
B+
Retailer 20
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€5,644 EUR
$6,305 USD
View
B+
Retailer 21
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€6,060 EUR
$6,770 USD
View
Retailer 22
-
€8,461 EUR
A$14,542 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Diamond Quarter
4.05IFELG649FD0N · Oct 29
€9,381 EUR
£8,253 GBP
View
22 more retailers have this diamond
Prices start from €1,489 EURSave up to €7,893 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
4.05ct Radiant
€1,489 EUR