Radiant|Lab Grown|IGI

4.01ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG684505958

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

Certificate IGI LG684505958

Diamond specifications and retailer prices

From $1,606 USD
£1,264 GBP
As of October 29, 2026
2 retailers carry this diamond
Most expensive: $3,659 USD at Rare Carat
View at Rare Carat

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 very-good cut grade and certified by IGI LG684505958 or 684505958. Listed at 2 retailers as of October 29, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

4.01
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.4°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG684505958
Dimensions11.29 × 7.77 × 5.32 mm
L/W Ratio1.45
Culet sizePointed
Top View
11.29 mm7.77 mm4.01 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG684505958
Side View
Table 64.0%Crown 45.4°Girdle: MED-STKPavilion 35.9°Culet: NoneDepth 68.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $1,316 USD|Low: $583 USD|High: $3,031 USD|Avg: $1,070 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 1, 2026
Retailer 9$631 USD
Retailer 8$769 USD
Retailer 2$827 USD
Retailer 7$910 USD
Retailer 5$976 USD
Retailer 6$1,088 USD
Retailer 4$1,205 USD
Retailer 1$1,316 USD
Retailer 3$2,007 USD

71 data points across 9 retailers

2 retailers

B+
Cheapest Retailer
-
$1,606 USD
£1,264 GBP
Most Expensive
Rare Carat
684505958
$3,659 USD
View
1 more retailer has this diamond
Prices start from $1,606 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.

B+
4.01ct Radiant
$1,606 USD