I have three colourful little Tourmaline rings here ready to go.
The Pink is a size R
Blue size P
Yellow size O
If these aren't the right size or colour then please head here... https://www.marshadrewjewellery.com/product-page/tourmaline-ring 
to see the other Tourmalines I have in stock.
*** The Opal ring can be found here... https://www.marshadrewjewellery.com/product-page/slim-opal-ring