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Radiant|Lab Grown|IGI

4.15ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG628419062

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

Certificate IGI LG628419062

Diamond specifications and retailer prices

From €1,459 EUR
£1,283 GBP
As of October 30, 2026
Save €7,815 EUR (84%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: €9,273 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.15ct lab-grown radiant diamond

This 4.15ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG628419062 or 628419062. Listed at 22 retailers as of October 30, 2026, with prices from €1,459 to €9,273, a €7,815 spread on the same certified stone. Brilliant Earth lists it at €9,273. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.15
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628419062
Dimensions11.37 × 8.12 × 5.22 mm
L/W Ratio1.40
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
11.37 mm8.12 mm4.15 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628419062
Side View
Table 60.0%Crown 44.9°Girdle: MediumPavilion 33.4°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A+
Exceptional
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: €9,273 EUR|Low: €1,459 EUR|High: €13,068 EUR|Avg: €3,606 EUR|-29.0%
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
Retailer 18
Retailer 19
October 31, 2026
Retailer 15€1,459 EUR
Retailer 7€1,506 EUR
Retailer 8€1,685 EUR
Retailer 16€1,746 EUR
Retailer 13€1,898 EUR
Retailer 11€1,974 EUR
Retailer 12€2,475 EUR
Retailer 10€2,497 EUR
Retailer 14€2,747 EUR
Retailer 19€3,272 EUR
Retailer 2€3,448 EUR
Retailer 5€3,615 EUR
Retailer 17€3,716 EUR
Retailer 6€4,705 EUR
Retailer 4€4,961 EUR
Retailer 18€5,013 EUR
Retailer 3€5,054 EUR
Retailer 9€6,127 EUR
Brilliant Earth€9,273 EUR

21 data points across 19 retailers

22 retailers€1,459 EUR to €9,273 EUR

A+
Cheapest Retailer
-
€1,459 EUR
£1,283 GBP
A
Retailer 2
-
€1,506 EUR
$1,682 USD
View
A
Retailer 3
-
€1,685 EUR
$1,883 USD
View
Final sale: no returns
A
Retailer 4
-
€1,746 EUR
$1,951 USD
View
A
Retailer 5
-
€1,898 EUR
$2,120 USD
View
Retailer 6
-
€1,974 EUR
$2,205 USD
View
Price last confirmed 20 days ago
Retailer 7
-
€2,440 EUR
HK$21,300 HKD
View
Price last confirmed 57 days ago
A
Retailer 8
-
€2,475 EUR
£2,177 GBP
View
A
Retailer 9
-
€2,497 EUR
$2,790 USD
View
A
Retailer 10
-
€2,747 EUR
$3,069 USD
View
A
Retailer 11
-
€3,272 EUR
$3,656 USD
View
A
Retailer 12
-
€3,448 EUR
View
Retailer 13
-
€3,451 EUR
$3,855 USD
View
Price last confirmed 25 days ago
A
Retailer 14
-
€3,615 EUR
£3,180 GBP
View
A
Retailer 15
-
€3,716 EUR
ZAR 67,077 ZAR
View
A
Retailer 16
-
€4,705 EUR
$5,256 USD
View
A
Retailer 17
-
€4,961 EUR
$5,542 USD
View
A
Retailer 18
-
€5,013 EUR
£4,410 GBP
View
A
Retailer 19
-
€5,054 EUR
$5,646 USD
View
Retailer 20
-
€5,890 EUR
$6,580 USD
View
Price last confirmed 33 days ago
B+
Retailer 21
-
€6,127 EUR
$6,845 USD
View
Most Expensive
B+
Brilliant Earth
14086409A · Oct 30
€9,273 EUR
$10,360 USD
View
21 more retailers have this diamond
Prices start from €1,459 EURSave up to €7,815 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+
4.15ct Radiant
€1,459 EUR