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Cushion|Lab Grown|IGI

3.06ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG618422681

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG618422681

Diamond specifications and retailer prices

From $2,330 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $2,330 USD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 3.06ct lab-grown cushion diamond

This 3.06ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG618422681 or 618422681. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

3.06
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618422681
Dimensions10.64 × 7.26 × 4.96 mm
L/W Ratio1.47
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
10.64 mm7.26 mm3.06 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618422681
Side View
Table 62.0%Crown 35°Girdle: MTS-MTSPavilion 38.4°Culet: NoneDepth 68.0%

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: $2,330 USD|Low: $2,330 USD|High: $3,530 USD|Avg: $3,019 USD|-31.7%
August 9, 2026
Brilliant Earth$2,330 USD

20 data points across 1 retailer

1 retailer

B
Brilliant Earth
9174581B · Nov 2
$2,330 USD
View

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
3.06ct Cushion
$2,330 USD