Cushion|Lab Grown|IGI

4.05ct G VS2 Cushion Lab Grown Diamond

EX • G/VS2 • IGI LG815602434

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG815602434

Diamond specifications and retailer prices

From $491 USD
As of October 31, 2026
Save $2,609 USD (84%) 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 LG815602434 or 815602434. Listed at 4 retailers as of October 31, 2026, with prices from $491 to $3,100, a $2,609 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 angle35.5°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815602434
Dimensions11.52 × 8.31 × 5.48 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
11.52 mm8.31 mm4.05 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815602434
Side View
Table 63.0%Crown 35.5°Girdle: MED-STKPavilion 36.4°Culet: NoneDepth 65.9%

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: $491 USD|High: $3,100 USD|Avg: $1,441 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3$491 USD
Retailer 5$720 USD
Retailer 8$879 USD
Retailer 2$927 USD
Retailer 6$1,349 USD
Retailer 7$1,886 USD
Retailer 4$2,280 USD
Brilliant Earth$3,100 USD

38 data points across 8 retailers

4 retailers$491 USD to $3,100 USD

A
Cheapest Retailer
-
$491 USD
Final sale: no returns
A
Retailer 2
-
$927 USD
£730 GBP
View
Retailer 3
-
$2,280 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21223269A · Oct 31
$3,100 USD
View
3 more retailers have this diamond
Prices start from $491 USDSave up to $2,609 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
$491 USD