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 $7,837 SGD
$6,130 USD
As of October 26, 2026
14 retailers carry this diamond
Most expensive: $7,837 SGD 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
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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Good
Decent quality, room for better deals
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Price History

Last verified: Oct 26
Current: $7,837 SGD|Low: $491 SGD|High: $8,079 SGD|Avg: $1,993 SGD|-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$584 SGD
Retailer 10$608 SGD
Retailer 14$655 SGD
Retailer 6$725 SGD
Retailer 13$725 SGD
Retailer 15$972 SGD
Retailer 11$1,093 SGD
Retailer 8$1,191 SGD
Retailer 2$1,211 SGD
Retailer 5$1,785 SGD
Retailer 12$1,947 SGD
Retailer 4$2,369 SGD
Retailer 3$2,455 SGD
Retailer 9$2,676 SGD
Brilliant Earth$7,837 SGD

35 data points across 15 retailers

14 retailers

Retailer 1
-
$584 SGD
$457 USD
Price last confirmed 11 days ago
Retailer 2
-
$608 SGD
£374 GBP
View
Price last confirmed 13 days ago
Retailer 3
-
$725 SGD
$567 USD
View
Price last confirmed 14 days ago
Retailer 4
-
$725 SGD
$567 USD
View
Price last confirmed 10 days ago
Retailer 5
-
$972 SGD
$760 USD
View
Price last confirmed 9 days ago
Retailer 6
-
$1,093 SGD
$855 USD
View
Price last confirmed 8 days ago
Retailer 7
-
$1,191 SGD
£734 GBP
View
Price last confirmed 9 days ago
Retailer 8
-
$1,211 SGD
€902 EUR
View
Price last confirmed 7 days ago
Retailer 9
-
$1,785 SGD
$1,396 USD
View
Price last confirmed 9 days ago
Retailer 10
-
$1,947 SGD
$1,523 USD
View
Price last confirmed 8 days ago
Retailer 11
-
$2,369 SGD
$1,853 USD
View
Price last confirmed 9 days ago
Retailer 12
-
$2,455 SGD
$1,920 USD
View
Price last confirmed 9 days ago
Retailer 13
-
$2,676 SGD
£1,648 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
20907183A · Oct 26
$7,837 SGD
$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
$7,837 SGD