To find the total cost for Suresh to make 100 pieces of costume jewelry, we multiply the cost to make one piece by the total number of pieces:
Cost for one piece = $1.55
Number of pieces = 100
Total cost = Cost for one piece × Number of pieces
Total cost = $1.55 × 100 = $155.00
Therefore, the cost for Suresh to make all 100 pieces is $155.00.