Radiant|Lab Grown|IGI

4.07ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG839645230

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

Certificate IGI LG839645230

Diamond specifications and retailer prices

From €772 EUR
$863 USD
As of October 30, 2026
Save €2,004 EUR (72%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €5,675 EUR at Brilliant Earth · As of October 1, 2026
View at Brilliant Earth

About this 4.07ct lab-grown radiant diamond

This 4.07ct 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 LG839645230 or 839645230. Listed at 9 retailers as of October 30, 2026, with a 259% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.07
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle32.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839645230
Dimensions11.82 × 7.94 × 5.09 mm
L/W Ratio1.49
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.82 mm7.94 mm4.07 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839645230
Side View
Table 63.0%Crown 38.1°Girdle: MediumPavilion 32.1°Culet: NoneDepth 64.1%

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: €5,675 EUR|Low: €772 EUR|High: €5,675 EUR|Avg: €2,306 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 5€772 EUR
Retailer 2€937 EUR
Retailer 6€1,003 EUR
Retailer 4€1,457 EUR
Retailer 8€1,812 EUR
Retailer 9€2,211 EUR
Retailer 7€2,218 EUR
Retailer 3€2,777 EUR
Brilliant Earth€5,675 EUR

12 data points across 9 retailers

9 retailers€772 EUR to €2,777 EUR

B+
Cheapest Retailer
-
€772 EUR
$863 USD
B+
Retailer 2
-
€937 EUR
View
A
Retailer 3
-
€1,003 EUR
$1,121 USD
View
B+
Retailer 4
-
€1,457 EUR
$1,628 USD
View
B+
Retailer 5
-
€1,812 EUR
$2,024 USD
View
B
Retailer 6
-
€2,211 EUR
$2,470 USD
View
B
Retailer 7
-
€2,218 EUR
SGD 3,348 SGD
View
B
Retailer 8
-
€2,777 EUR
$3,102 USD
View
Most Expensive
Brilliant Earth
21597794A · Oct 1
€5,675 EUR
$6,340 USD
View
Price last confirmed 30 days ago
8 more retailers have this diamond
Prices start from €772 EURSave up to €2,004 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
4.07ct Radiant
€772 EUR