Natural studs: specimen rings

These rock rings are from Billy Bride. I really like them, they're colorful, they're made of natural stones and they have studs. They are made of rough pieces of crystals, we can see the original shape of them, they have spikes, they are perfect. The sad side is that they're price floats between $300 and $400, too expensive for me i'll have a look for natural stones next time i'll hit a antique market.