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 $947 USD
€902 EUR
As of October 23, 2026
Save $5,183 USD (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,130 USD 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 $947 to $6,130, a $5,183 spread on the same certified stone. Brilliant Earth lists it at $6,130. 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

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 23
Current: $6,130 USD|Low: $384 USD|High: $6,320 USD|Avg: $1,559 USD|-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$457 USD
Retailer 10$476 USD
Retailer 14$512 USD
Retailer 6$567 USD
Retailer 13$567 USD
Retailer 15$760 USD
Retailer 11$855 USD
Retailer 8$932 USD
Retailer 2$947 USD
Retailer 5$1,396 USD
Retailer 12$1,523 USD
Retailer 4$1,853 USD
Retailer 3$1,920 USD
Retailer 9$2,093 USD
Brilliant Earth$6,130 USD

35 data points across 15 retailers

14 retailers$947 USD to $6,130 USD

Retailer 1
-
$457 USD
Price last confirmed 10 days ago
Retailer 2
-
$476 USD
£374 GBP
View
Price last confirmed 13 days ago
Retailer 3
-
$567 USD
View
Price last confirmed 13 days ago
Retailer 4
-
$567 USD
View
Price last confirmed 10 days ago
Retailer 5
-
$760 USD
View
Price last confirmed 9 days ago
Retailer 6
-
$855 USD
View
Price last confirmed 8 days ago
Retailer 7
-
$932 USD
£734 GBP
View
Price last confirmed 9 days ago
A
Retailer 8
-
$947 USD
€902 EUR
View
Retailer 9
-
$1,396 USD
View
Price last confirmed 8 days ago
Retailer 10
-
$1,523 USD
View
Price last confirmed 8 days ago
Retailer 11
-
$1,853 USD
View
Price last confirmed 8 days ago
Retailer 12
-
$1,920 USD
View
Price last confirmed 9 days ago
Retailer 13
-
$2,093 USD
£1,648 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
20907183A · Oct 26
$6,130 USD
View
13 more retailers have this diamond
Prices start from $947 USDSave up to $5,183 USD

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
$947 USD