Mainsail Co-Investors III, L.P.

Filing for proposed sale of securities under Rule 144

Filing for proposed sale of securities under Rule 144

Exempt (Private) Offering

Brilliant Earth Group, Inc.: Statement of changes in beneficial ownership of securities

Brilliant Earth Group, Inc.: Statement of changes in beneficial ownership of securities

Brilliant Earth Group, Inc.: Statement of changes in beneficial ownership of securities

Brilliant Earth Group, Inc.: Initial statement of beneficial ownership of securities