Three gem-set necklaces

pearl necklace:
gr. 87,4
short row: cm 36,1
long row: cm 41,7
clasp: cm 4,0 x 2,0

jadeite and pearl necklace:
gr. 78,3
short row: cm 53,5
long row: cm 59,0

coral necklace:
gr. 124,7
short row: cm 38,0
long row: cm 46,0
casp: cm 3,0 x 2,0