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 €851 EUR
As of October 23, 2026
Save €4,657 EUR (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €5,508 EUR at Brilliant Earth · As of October 26, 2026
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 23, 2026, with prices from €851 to €5,508, a €4,657 spread on the same certified stone. Brilliant Earth lists it at €5,508. 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
Colour
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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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 23
Current: €5,508 EUR|Low: €345 EUR|High: €5,678 EUR|Avg: €1,401 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€411 EUR
Retailer 10€427 EUR
Retailer 14€460 EUR
Retailer 6€509 EUR
Retailer 13€509 EUR
Retailer 15€683 EUR
Retailer 11€768 EUR
Retailer 8€837 EUR
Retailer 2€851 EUR
Retailer 5€1,254 EUR
Retailer 12€1,368 EUR
Retailer 4€1,665 EUR
Retailer 3€1,725 EUR
Retailer 9€1,880 EUR
Brilliant Earth€5,508 EUR

35 data points across 15 retailers

14 retailers€851 EUR to €5,508 EUR

Retailer 1
-
€411 EUR
$457 USD
Price last confirmed 10 days ago
Retailer 2
-
€427 EUR
£374 GBP
View
Price last confirmed 13 days ago
Retailer 3
-
€509 EUR
$567 USD
View
Price last confirmed 13 days ago
Retailer 4
-
€509 EUR
$567 USD
View
Price last confirmed 10 days ago
Retailer 5
-
€683 EUR
$760 USD
View
Price last confirmed 9 days ago
Retailer 6
-
€768 EUR
$855 USD
View
Price last confirmed 8 days ago
Retailer 7
-
€837 EUR
£734 GBP
View
Price last confirmed 9 days ago
A
Retailer 8
-
€851 EUR
View
Retailer 9
-
€1,254 EUR
$1,396 USD
View
Price last confirmed 8 days ago
Retailer 10
-
€1,368 EUR
$1,523 USD
View
Price last confirmed 8 days ago
Retailer 11
-
€1,665 EUR
$1,853 USD
View
Price last confirmed 8 days ago
Retailer 12
-
€1,725 EUR
$1,920 USD
View
Price last confirmed 9 days ago
Retailer 13
-
€1,880 EUR
£1,648 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
20907183A · Oct 26
€5,508 EUR
$6,130 USD
View
13 more retailers have this diamond
Prices start from €851 EURSave up to €4,657 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
4.06ct Radiant
€851 EUR