These are Knot Earrings from Tiffany & Co. Rank B: There are slight scratches and Tarnish typical of silver due to use, but the item can still be used.
Brand name: Tiffany & Co.
Model name: Knot
Size
Height 0.8 cm (0.31 in) x Width 0.8 cm (0.31 in): 6.6 g
Accessories
None
Material
925 cm (364.17 in)

Condition Guide:
S: Like new by the store's standards
SA: Almost unused, overall pristine
A: Excellent condition
AB: Great condition, minor signs of use
B: Good condition, signs of wear from normal use
C: Noticeable scratches, dirt, or signs of use
D: Heavily damaged or in need of repair