I've been told it's from him, but I can't guarantee it. Stone: 3 x 1,5 cm.
I'm not an expert on stone, but it looks like moss agate. The item "Reino saastamoinen vintage bronze bracelet Finland Moss Agate SCANDINAVIAN" is in sale since Sunday, July 26, 2020. This item is in the category "Jewelry & Watches\Vintage & Antique Jewelry\Vintage Ethnic/Regional/Tribal\Scandinavian".
The seller is "thehappyviking" and is located in -. This item can be shipped worldwide.