The ornamental design for a cosmeticsbox, as shown and described.
FIG. 1 is a perspective view of a cosmetics box;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a perspective view thereof, wherein the cosmetics box is in an opened position for illustrative purpose.
The broken line showing of the interior of the box is included for the purpose of illustrating portions of the article and forms no part of the claimed design.