Cushion|Lab Grown|IGI

4.07ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG823638918

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG823638918

Diamond specifications and retailer prices

From €454 EUR
$507 USD
As of October 31, 2026
Save €401 EUR (47%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €855 EUR at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 4.07ct lab-grown cushion diamond

This 4.07ct lab-grown cushion 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 LG823638918 or 823638918. Listed at 2 retailers as of October 31, 2026, with prices from €454 to €855, a €401 spread on the same certified stone. 77 Diamonds lists it at €855. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823638918
Dimensions9.27 × 9.23 × 6.18 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.27 mm9.23 mm4.07 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823638918
Side View
Table 62.0%Crown 33.6°Girdle: MED-THKPavilion 39.9°Culet: NoneDepth 67.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: €855 EUR|Low: €454 EUR|High: €1,261 EUR|Avg: €870 EUR|-6.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 2€454 EUR
Retailer 3€658 EUR
Retailer 5€811 EUR
77 Diamonds€855 EUR
Retailer 4€1,261 EUR

38 data points across 5 retailers

2 retailers€454 EUR to €855 EUR

A
Cheapest Retailer
-
€454 EUR
$507 USD
Final sale: no returns
Most Expensive
A
77 Diamonds
CUSTVSCWZ6KZZX · Nov 1
€855 EUR
£752 GBP
View
1 more retailer has this diamond
Prices start from €454 EURSave up to €401 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 Cushion
€454 EUR