I do not carry a lot of opal jewelry in my shop, but with the month of opal coming up, I can share with you my experience with this gem. As you know, opal is a very soft stone and that makes it hard to work with – one reason I don’t carry it much. Bezel settings look nicest, yet prongs are safest if you don’t want to crack the gem or expand an inclusion to the surface. You need an experienced...