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Cushion|Lab Grown|IGI

4.05ct H VS1 Cushion Lab Grown Diamond

ID • H/VS1 • IGI LG828607757

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG828607757

Diamond specifications and retailer prices

From €5,073 EUR
$5,690 USD
As of November 2, 2026
2 retailers carry this diamond
Most expensive: €5,073 EUR at Brilliant Earth
View at Brilliant Earth

About this 4.05ct lab-grown cushion diamond

This 4.05ct lab-grown cushion sits in the three to five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG828607757 or 828607757. Listed at 2 retailers as of November 2, 2026. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.05
Carat
H
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828607757
Dimensions10.98 × 8.18 × 5.48 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.98 mm8.18 mm4.05 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828607757
Side View
Table 49.0%Crown 39.6°Girdle: STK-THKPavilion 38.2°Culet: LargeDepth 67.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: €5,073 EUR|Low: €1,481 EUR|High: €7,018 EUR|Avg: €3,303 EUR|-0.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
September 9, 2026
Retailer 2€1,835 EUR
Retailer 5€1,860 EUR
Retailer 4€2,300 EUR
Brilliant Earth€5,073 EUR
Retailer 3€7,018 EUR

8 data points across 5 retailers

2 retailers

Retailer 1
-
€1,860 EUR
HK$16,300 HKD
Price last confirmed 54 days ago
Most Expensive
B
Brilliant Earth
21078666A · Nov 2
€5,073 EUR
$5,690 USD
View
1 more retailer has 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
4.05ct Cushion
€5,073 EUR