These cute little textured pebble studs are handmade in fine silver.
They are organic in shape so no two are the same. The plain pairs measure around 1cm and the gemstone studs, slightly bigger at 10mm to 12mm
The gemstones are flush set into the silver and are 2.5mm
I only have three gems to choose from at the mo and they are.
Pink Tourmaline
London Blue Topaz
Green Tourmaline *not pictured but can be seen in the dangle earring version here... 
https://www.marshadrewjewellery.com/product-page/silver-pebble-earrings