Sterling and Gemstone Ring cheapest

I have 3 Hammered silver ring options: Butterfly, ribbon, and Flower bud. I can put a variety of stones into each them.
Flower Bud takes a 6mm cabochon Gemstone or pearl
Butterfly takes tiny gemstone chips
And ribbon takes both with a little work
At this time I have birthstones for all of the months of the year and the price listed is based on the stones I already have if you want something special like a certified, gem quality Aquamarine I'll be happy to get one for you, but anything beyond a specific price point will cause an increase in the cost of the finished product, and cheapest will take time for me to order.