Cushion|Lab Grown|IGI

4.05ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG811604824

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG811604824

Diamond specifications and retailer prices

From $472 USD
As of October 31, 2026
Save $2,628 USD (85%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $3,100 USD at Brilliant Earth · As of October 31, 2026
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 G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG811604824 or 811604824. Listed at 4 retailers as of October 31, 2026, with prices from $472 to $3,100, a $2,628 spread on the same certified stone. Brilliant Earth lists it at $3,100. 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
G
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811604824
Dimensions10.76 × 8.43 × 5.70 mm
L/W Ratio1.28
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.76 mm8.43 mm4.05 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811604824
Side View
Table 63.0%Crown 38.2°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 67.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $3,100 USD|Low: $472 USD|High: $3,200 USD|Avg: $1,568 USD|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 3$472 USD
Retailer 6$545 USD
Retailer 5$846 USD
Retailer 2$889 USD
Retailer 4$2,280 USD
Retailer 7$2,288 USD
Brilliant Earth$3,100 USD

38 data points across 7 retailers

4 retailers$472 USD to $3,100 USD

A
Cheapest Retailer
-
$472 USD
Final sale: no returns
A
Retailer 2
-
$889 USD
£700 GBP
View
Retailer 3
-
$2,280 USD
View
Price last confirmed 13 days ago
Most Expensive
B
Brilliant Earth
20331449A · Oct 31
$3,100 USD
View
3 more retailers have this diamond
Prices start from $472 USDSave up to $2,628 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.

A
4.05ct Cushion
$472 USD