Pink tourmaline rings in .925 sterling silver.
The stone. Tourmaline occurs in more colours than any other gem, and the pink variety is October's alternate birthstone alongside opal — useful if you want an October stone that stands up to daily wear better.
Sizing. Sterling can be sized by a jeweller, though a band set all the way round generally cannot.
See also tourmaline earrings, stackable rings and all Rings.