SIZE: 6ss=1.90-2.10mm/0.07 inches
SUGGESTED REPLACEMENT FOR SWAROVSKI
SIZE: 12ss=3.00-3.20mm/0.12 in.
SIZE:16ss=3.80-4.00mm/0.15-0.16in.
SIZE:30ss=6.32-6.50mm/0.25-0.26in.
SIZE:34ss=7.07-7.27mm/0.28-0.29 inches