Cushion|Lab Grown|IGI

4.05ct G VS2 Cushion Lab Grown Diamond

EX • G/VS2 • IGI LG813645991

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG813645991

Diamond specifications and retailer prices

From $498 USD
As of October 31, 2026
Save $2,602 USD (84%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,100 USD at Brilliant Earth · As of October 27, 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 LG813645991 or 813645991. Listed at 3 retailers as of October 27, 2026, with prices from $498 to $3,100, a $2,602 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813645991
Dimensions11.46 × 8.23 × 5.43 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.46 mm8.23 mm4.05 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813645991
Side View
Table 62.0%Crown 35.6°Girdle: MED-STKPavilion 35.5°Culet: NoneDepth 66.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $3,100 USD|Low: $498 USD|High: $3,110 USD|Avg: $1,332 USD|-0.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 28, 2026
Retailer 2$498 USD
Retailer 4$725 USD
Retailer 7$886 USD
Retailer 3$940 USD
Retailer 5$1,351 USD
Retailer 6$1,904 USD
Brilliant Earth$3,100 USD

34 data points across 7 retailers

3 retailers$498 USD to $3,100 USD

A
Cheapest Retailer
-
$498 USD
Final sale: no returns
A
Retailer 2
-
$940 USD
£740 GBP
View
Most Expensive
B
Brilliant Earth
21226760A · Oct 27
$3,100 USD
View
2 more retailers have this diamond
Prices start from $498 USDSave up to $2,602 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
$498 USD