Glasswing is a company that specialises in seaglass jewellery (broken bottles washed smooth by the sea, and foraged hundreds of years later). So your wedding ring could be an old pirate’s bottle (shiver me timbers!)
This lovely company tends to use recycled silver for the rings themselves, the the ‘seaglass’ replaces conventional gemstones. It also offers nice recycled silver stacking rings and other gifts for bridesmaids.
There is enough gold and silver already mined on earth, to last for eternity. So what’s the point of blowing up mines with dynamite and destroying the local environment and wildlife, just to put a band on your ring finger?