In my Beaded Circles and Rings, I started a compilation of various samples that resulted from a tutorial on how to bead in circles around metal rings.
(That source tutorial was YouTube video by C y L Accessories, Tutorial Aretes de aros decorados con cristales y mostacillas.)
This is my photo tutorial (which I find is often easier and quicker for referencing than videos especially when you only want a refresher) based on those same principles. Specifically for how to make this pair of earrings.
These earrings utilise Swarovski 4mm bicones (Crystal Metallic Blue 2x) with 24K plated Japanese seedbead.
I only have time to provide a photo tutorial here but I hope it helps.