As of 11/19/22, the spot price of silver (pure silver) was $21.06 per ounce.
Rio Grande is a good source of silver (and jewelry tools and supplies), but I use Thunderbird Supply Company also.They will cut to size, and have sheets up to 6" X 36".
Thunderbird lists 18 gauge (.040 thick, a little over 1/32 thick) sterling silver sheet cut to size at $36.02 per inch by 6" long. The price will fluctuate, depending of the daily spot price of silver.
Hope this helps.
Rick