All silver designed on a saddle band (think English riding saddle smooth and wide on top and narrow underneath.  Larimar a one source stone found only in the Dominican Republic.  Material is becoming less and more expensive.   A) 1 5/8"long x 1"wide;        B) 1 1/4"long x 3/4"wide; C) 1" x 1"; D) 1 1/2"long x 1/2"wide; E) 1 1/8"long x 3/4"wide   F) 1"long x 7/8"wide.