Radiant|Lab Grown|IGI

4.06ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG817680753

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

Certificate IGI LG817680753

Diamond specifications and retailer prices

From €5,487 EUR
$6,130 USD
As of October 26, 2026
14 retailers carry this diamond
Most expensive: €5,487 EUR at Brilliant Earth
View at Brilliant Earth

About this 4.06ct lab-grown radiant diamond

This 4.06ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG817680753 or 817680753. Listed at 14 retailers as of October 26, 2026. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

4.06
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.2°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817680753
Dimensions11.40 × 7.85 × 5.10 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.40 mm7.85 mm4.06 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817680753
Side View
Table 58.0%Crown 27.2°Girdle: ThickPavilion 33.9°Culet: NoneDepth 65.0%

Caratlytics Score

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Price History

Last verified: Oct 26
Current: €5,487 EUR|Low: €344 EUR|High: €5,657 EUR|Avg: €1,384 EUR|-3.0%
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
October 23, 2026
Retailer 7€409 EUR
Retailer 10€426 EUR
Retailer 14€458 EUR
Retailer 6€508 EUR
Retailer 13€508 EUR
Retailer 15€680 EUR
Retailer 11€765 EUR
Retailer 8€834 EUR
Retailer 2€848 EUR
Retailer 5€1,250 EUR
Retailer 12€1,363 EUR
Retailer 4€1,659 EUR
Retailer 3€1,719 EUR
Retailer 9€1,873 EUR
Brilliant Earth€5,487 EUR

33 data points across 15 retailers

14 retailers

Retailer 1
-
€409 EUR
$457 USD
Price last confirmed 12 days ago
Retailer 2
-
€426 EUR
£374 GBP
View
Price last confirmed 15 days ago
Retailer 3
-
€508 EUR
$567 USD
View
Price last confirmed 15 days ago
Retailer 4
-
€508 EUR
$567 USD
View
Price last confirmed 12 days ago
Retailer 5
-
€680 EUR
$760 USD
View
Price last confirmed 10 days ago
Retailer 6
-
€765 EUR
$855 USD
View
Price last confirmed 10 days ago
Retailer 7
-
€834 EUR
£734 GBP
View
Price last confirmed 11 days ago
Retailer 8
-
€848 EUR
View
Price last confirmed 8 days ago
Retailer 9
-
€1,250 EUR
$1,396 USD
View
Price last confirmed 10 days ago
Retailer 10
-
€1,363 EUR
$1,523 USD
View
Price last confirmed 10 days ago
Retailer 11
-
€1,659 EUR
$1,853 USD
View
Price last confirmed 10 days ago
Retailer 12
-
€1,719 EUR
$1,920 USD
View
Price last confirmed 11 days ago
Retailer 13
-
€1,873 EUR
£1,648 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
20907183A · Oct 26
€5,487 EUR
$6,130 USD
View
13 more retailers have this diamond

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.

B
4.06ct Radiant
€5,487 EUR