These are very bright blue natural (from-the-ground) Ceylon blue sapphires set in yellow 14 karat gold. Look closely at the settings. They do not snag ever--even when you rip tight polar fleece over your head with a pop. I wore these for years, day and night, and as you can see, they are still remarkably lively and together :) They were not even cleaned for this portrait, so if you like them here, you'll like them on! They are 1/2 inch, not too big not too small. I hope someone else gets years of snazzy lobes with them.