Radiant|Lab Grown|IGI

4.01ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG681501883

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

Certificate IGI LG681501883

Diamond specifications and retailer prices

From $1,606 USD
£1,264 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: $1,606 USD at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamond Quarter

About this 4.01ct lab-grown radiant diamond

This 4.01ct 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 LG681501883 or 681501883. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

4.01
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681501883
Dimensions11.29 × 7.90 × 5.13 mm
L/W Ratio1.43
Culet sizePointed
Top View
11.29 mm7.90 mm4.01 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681501883
Side View
Table 66.0%Crown 43.5°Girdle: MediumPavilion 34.2°Culet: NoneDepth 64.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $1,316 USD|Low: $583 USD|High: $3,087 USD|Avg: $1,187 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 1, 2026
Retailer 8$750 USD
Retailer 9$769 USD
Retailer 3$827 USD
Retailer 6$976 USD
Retailer 7$1,075 USD
Retailer 5$1,205 USD
Retailer 1$1,316 USD
Retailer 4$2,007 USD
Retailer 2$3,087 USD

73 data points across 9 retailers

1 retailer

B
Diamond Quarter
4.01SI1ELG8364D4N · Oct 29
$1,606 USD
£1,264 GBP
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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
4.01ct Radiant
$1,606 USD